Perhaps I'm seeing something differently? Rather than a direct hit, as it started at the end of the front fender, it might have been more of a "glancing blow" rather than a "direct hit'? Which could mean that the center post has not been displaced very much at all, with the rear door shell being deformed the most (needing replacement). The front door still seems to be closed and in reasonable alignment, at least from the pictures.
Most of the modern drive-on frame machines I've seen are more oriented toward front or rear pulls, not issues with the side of the car (where a Uniside item would be sectioned-in or fully replaced, cowl to tail light).
If the rocker panel is not deformed, then you could get a center section from a donor vehicle, drill out the spot welds and sealer on both items, and replicate the factory (body shop) assembly process with OEM-level repairs. Hopefully, the donor vehicle could supply a rh rr door, too.
BUT, in the end, it's a "financial total" any way you look at it. fwiw. But for a buyer with some welding experience that could do the work themselves, to an OEM level of execution, might make a decent winter project AND result in a nice car for several years to come.
Just some thoughts,
CBODY67
