I have the option of importing a 1985 90 Wagon with the 2.5 diesel (non-turbo but it could be upgraded to a 200TDI before shipping as well as an option, a recommended one) which I would then clean up, paint, and do the basic repairs at a minimum.
This one would be exportable to the USA, and if imported it to the USA then drove back here, I'm going to have several newer 90s here and could do anything including a ground-up restoration here for you.
Here are some photographs http://david.woodhou.se/county/index.html
and I'll be inspecting it in person next week but there don't appear to be any major issues short of needing a new exhaust and clean-up which could run from wire-wheel to full assembly onto a new Richards chassis with each part first being sandblasted and then either galvanized or painted prior to assembly. Etc.
If you're interested at all drop me an email and we can see what options there are. The seller is a personal friend near Cambridge so it could get major items done while still in the UK to save on shipping costs etc.