my bad luck

That sucks, sorry to hear about it, but sounds like something I'd do.

I just had a simular disaster with my dart.

I've just finished painting my car, with it dissassembled, doors off fenders off etc.

I did a full base/clear paint job, hours and hours of color sanding and buffing.

So the other day, I was getting ready to reinstall my pass side door, and long story short I dropped the back end of the door onto the concrete from about 2ft up. Totally folded the lower rear corner of the door over. I was so pissed I just walked away for about 3 weeks.
Just started working on it again. It can be fixed without too much difficulty, but after countless hours of bodywork, painting, colorsanding, buffing just on that one door, it really ticked me off.
I have both doors installed and aligned now, but still haven't fixed the corner on the door I dropped. I'll fix it on the car.

Good luck with your roof