Ok folks, I have the finished kit installed and it works just fine. Here's the install instructions below with pics.
First off, your kit will include 2x40lbs gas springs, 2 lower (handed for left and right) mounting brackets and 2 (unhanded) upper brackets as per the pic.

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You'll need the appropriate tools to remove the bolts holding the upper and lower hood/bonnet hinge plates in place, some grease and about an hour of your time. Now, open the hood, put the hood prop in place and stand back to have a look at the last time you'll need to do that. We'll start with the upper mounts first.
Once you start removing or loosening screws the hood is likely to shift. So, to reduce the chances of this happening its best if you remove one screw first, fit it over the upper bracket, reattach the screw and tighten it enough that you can still move the bracket around. Then, while holding the hood in plce to prevent too much shifting, remove the other screw, slide the bracket into place, reattach the screw and tighten both. The bracket should have the ball stud pointing OUTWARDS to the outside of the car. Repeat on the other side as per the pics below.

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That was easy and done in about 10 minutes I would guess. Wondering where the other 50 minutes comes in? Right here.
Let's install the lower brackets. The two screws holding the lower hinge plate in place attach to a hidden plate on the underside of the bodywork accessible when the wheel arch is removed. I don't know if this plate is fixed in place and, over time, has become loose or if it was never glued on in the first place. But, there's an excellent chance that when you start removing these screws that plate will fall off and lodge itself somewhere behind the liner. In my case one side fell off but the other side did not. Cross your fingers when you remove these - if they don't fall off you'll save yourself 25 minutes removing the wheels and liners then replacing them. When you remove the rear bolts (the ones with the rubber stoppers on the ends) take a look to see how high they sit now. You'll need to lower them slightly by the thickness of the lower ball mounting plate when reinstalling them.
While installing these brackets I came across a small problem. Originally, these brackets were meant to slide under the lower hinge plate. However, the metal plate used to build these brackets is thicker (about double) than the prototype I made so when I installed them I noticed that the hood sat up a tiny bit more than flush. Not noticeable to anyone other than the owner (who knows their car so well) of course. And, it seemed to be mostly on one side which was odd. With these cars being hand built I suppose anything is possible. But, I remounted them on top of the hinge plates which helped. Of course, it could all be due to not aligning the hood (which we'lll get to later) properly which I'll revisit..................some day. So, take your pick on which side of the hinge plate you want to mount them. I left them on top (pics show them on the bottom though) after bending the metal a bit in a vise to more closely follow the contour of the body work but bottom could easily work for you.

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Once the brackets are in place you need to grease your balls. Given that this is a "family oriented" site I will refrain from providing detailed instruction on this section but will assume that you all know how to do this well enough. I used vaseline but I suppose any grease might do. You don't need much - just enough to let the balls move freely in their sockets - if you know what I mean. And no, this is NOT where the other 20 minutes is lost. I suspect most of you only need a couple of minutes for this procedure. After you've lubed your balls take the spring and compress it a few times by hand just to "break the seal" which will make it a bit easier to install completely later on. Then, attach the piston end to the upper sockets ONLY. Do not attach the bottom sockets yet. The piston end should be attached to the upper ball with the rod end being attached to the bottom ball later. Once done, take this time to align your hood properly and carefully by closing it until the latch catches. Whatever you do DO NOT completely close the hood/bonnnet (pushed all the way down and locked into place) until you've aligned the hood correctly as it might be very difficult to pop the hood again. Yes, this is the voice of experience talking.

When your hood/bonnet is aligned attach the spring to the lower socket. This will be a bit difficult as you'll need to compress the spring to get it to fit over the ball and that's not easy to do. It will work though. Hopefully, you've compressed the spring before hand as suggested to make it easier. Park the prop rod (I'd leave it installed though - just in case) and move the hood up and down to your heart's content. Hopefully, it will look like this when done.

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I'll post all the ordering information very shortly and will, of course, answer any questions you may have about the install.