I really wasn't expecting a debate, just a yes, here it is, or no, been tried. Here's my thoughts: as far as the track and guts, they could be pieced together no real issues here. The glass- it does have a slight curve actually so slight maybe a straight piece would work? Maybe that's a stretch, I'll check the site out for their thoughts Cranky. The only parts that bother me as far as fabricating it myself are the chrome strip attached to the back end of the glass that seals against the back window. Guess I could remove that and attach it to another piece of glass. And, the front section of the door where the vent window frame was. It's a good size gap.Maybe thick weatherstripping or weld a small piece of metal in. I could be wrong, but that price sounds a little high for a piece of glass.