Woah! Yeah... wow, that's bad. It could be done, but it would be one heckuva job.
I'd just swap everything over to a Spirit or Eagle though. Spirit would be easier though with the tranny hump I think. For $1800 I hope that the interior is like brand new because, besides the interior and the front clip... the rest can be found on an Eagle. Speaking of which, you may want to remove that link - not sure you can link to that stuff. But you can share the info with whomever would like to see it via PM. I could be wrong though - just wanted to give you a fair warning in case it goes "poof", lol.
Still, a great pic - thanks for sharing! amc78concord said it best when he said...
I'm in love with that car...
EDIT - Oh upon further investigation... I just realized what body style that was. Quite different from and eagle/spirit in the rear end. Shame it's rusted out. It's deff a parts car unless someone wants to put a LOT of time into it... which I'd glady do if anyone wants to saveit and donate it to me for the cause!