My advice and reasoning stands. It's similar to the saying, "If you have to ask what something costs, you can't afford it".

There are probably as many unfinished car projects sitting in garages or backyards around the country than actually made it on the road. Many of those are because the work was beyond the capabilities of the builder.

In my youth I had neighbors who chopped the top off a '50s Packard and drove it for a couple of months. When they tried to weld the roof back on it wouldn't fit. A cousin from Detroit told of another car that had had the roof cut off with similar results. Owners of Toyota Land Cruisers and Jeeps have had trouble refitting their hard tops after a few months of roofless motoring.

If you do decide to forge ahead, DO weld X-braces across rear, middle and front of the car's passenger space. Do this before the roof comes off and at least the body will remain straight. Also having the automobile level will really help.

Good Luck!
R.