Hey Ed. Would you mind taking a pic of the screen, mirror minus the glare? Maybe a top view, too? I'm getting ready to ditch my Speedster windshield fir the lexan one as well and I'd like to take a look at the spacing.
What did you do with your center support hole?
Center hole is just a hole. If you look at pics of the real cars, they usually have several unfilled former attachment points and such. I suppose I could stick a rivet in it.
The Fibersteel plastic screen is made to lay over and cover the mounting holes from the glass Speedster screen, so there's your fitment. You can just see a couple riv-nut edges peeking out from under the leather gasket on the right of this pic.
The tricky bits are the mirror and tonneau snaps. I just drilled a hole where I thought the mirror would look and work well, and then found the mirror that came with the plexi screen was a tad too tall, when stood upright as intended. It may be possible to just machine more threads up the stem to sink it; I opted to grind the top retaining nut at like a 15-degree angle and make a matching angled collet for underneath.
The one Tenax stud I had installed, using the tonneau itself as a guide before any windscreen was attached, had to be relocated about an inch rearward in order to get enough headroom for the snaps to function (you can see that hole too). I also had to have the tonneau altered likewise.
DM'd additional pics.