My car came with a TD-like windscreen. It is very similar to an original but not quite the same size—slightly narrower, as I recall. My car’s scuttle did not have the molded-in “plinths” for an extended windshield frame, If yours does have those, you’d have to shave them and reshape the scuttle for the MG windshield mount. Then you (probably) have to modify the original TD windscreen to fit your car’s width.
Adapting the CMC frame and glass to the MG fold-down mounting system is probably doable but will also probably entail quite a bit more labor than you at first would think. If you do it, by all means document your process!
Adapting the CMC folding top to the MG pin-and-clamp header support would undoubtedly be even trickier.
Thanks for the information. I bought a TD windshield bottom rail and it looks to be close to the same size as the Fiberfab windshield width. Can’t tell you exactly because I am laid up with back problems. Of course the scuttle would have to modified for starters because I have the squaring perch molded into the body. Definitely will require a little measuring.