Joeaksa,
we're using an aftermarket top and resurfacing it to develop the outer skin and we'll most likely 3d scan a factory top underside to develop the internal structure, replacement pins, latches, etc.
The reason we're using an aftermarket top is that we can make necessary changes in terms of overall surface, rain gutters or not, how we want to incorporate seals etc., without hacking up and potentially damaging a rare, more expensive factory hard top.
Here are a few pics from yesterday.
light guide coat
Longest sanding block we have in order to keep things level
Surface block sanded to reveal high and low spots. The dark spots you see in the last picture are actually low spots in the surface. Some of these patches are .050" deep, Some of the light spots are where I broke through the original gel coat.
After leveling the surface what I could, I sprayed another coat of fairing primer and will block that when I can.
I didn't bother taking a picture of that since it looks just the the blue one above
--todd