Targa top conversion
 

Feeling dumb...I bought a fiberglass targa top locally, great shape, right color, perfect headliner and weatherstripping, $300, but it turns out it is the 86-88 version. Didn't try it on before I bought it. I actually didn't know until now that there were 3 different versions of the top. Is there any way to easily convert the TOP to make it fit? I know the mounting points on the car can be changed, but i still want to be able to use the original acrylic top as well. Am i out the $300?