Where in NE are you? Have you priced the parts for the idler repair and the GPs? How's the A/C? What's wrong with the sunroof and it it an easy fix? What kind of mileage are you getting? Got any service records?
I may be interested as I'm looking for a good nice weather car to replace my ageing Mazda 929. I have 2 83 300 Diesels now, one's a nice coupe, the other is an ugly but great running sedan. Let me know. Also, you may want to watch E-Bay for a while and see what they are going for.