Um I think I just said that....anyway, if it really costs $14,000.00 to convert it to a convertible (BTW it looks like boca rat's car is a regular convertible, not a retractable hardtop) yes you would need to strengthen the frame of the car. (and by frame I mean the structural members under the floor) I can see how that might cost 14 grand, but with t-tops the only added structure would be down the middle of the roof, it replaces the old roof. aka, no bracing necessary in the floor. Sooooo, it can't cost nearly as much as the convertible option. The only other problem is finding t-tops that would fit, I don't think anybody makes aftermarket ones. but I'm yapping too much as it is.sonicintox
your gonna have to support the frame and for tops somehow move the support to go down the middle of the roof.