which door glass will work on a convertible?

As a thought - I assume that the difference in convert / notch / fastback is the shape of the top edge - can you use a notch or fastback glass and take it to a glass shop to have the top edge cut and finished to be the same shape as a convert glass? Is tempered glass able to be cut or ground?

I am sure that someone with a convert wouldn't mind tracing a template from theirs for comparison.

Just throwing ideas out there for you.