yes heat is the main concern
the holes will be pretty damn huge so it should vent really well
the lexan will be maybe .2" thick which should not distort at all

the window is huge, basically a window with a black frame ie whats left of the cover
the inside of the cover will be braced with a giant "x" made from 1" dia aluminum extrusion, youll see this running above the motor and it should look pretty sweet

naz at parrallell assures me their cover is a retrofit and after extensive reading i believe it, i think they make the best replica bar none