Don' think I would judge the frame by the pictures. Yeah, it looks rusty, just like the front looks greasy. What I am not seeing is huge holes in it or the whole lower sill of it gone. What those pictures show could easily be a car that sat in a garage or shed for multiple years. The engine bay seems fairly clean, or it just got a recent steam job. The interior is pure vanilla; totally grannie grade, bet the radio is just AM only. but, it is clean and neat, no tears in the upholstery or panels, even the dash appears intact. 60 thou original if you trust the speedo.
The quarter panels, well both sides show cancer. It would be what the trunk pan extensions look like that would interest me. The one picture of the rear glass that appears makes me wonder if the the lower rear sill under that chrome strip is starting to have issues. No pictures of the lower door sills. ????
I do agree that the ask on this approaches exorbitance given its state of origin. However, all the sheet metal, apart from those "snacks' in the q-panels, appear straight and injury free; they are all also the same color with the same degree of fade. No way to know what they look like internally without some up close and personal investigation.
Think I'd suggest 3000 as is. it is so vanilla that it would make a good candidate for a big block and some suspension work. Make a good sleeper to scare the kiddies during show and shine.
Nick