I wouldn't bother buying from people who don't have the car registered properly. Something's just off with that. Same for having a current inspection sticker. If the price is low to compensate for that, sure. But if they are asking an up-market price for it, then they better have it in a ready condition to be test-driven and taken to a mechanic for inspection.

Is the car that nice that you want all this hassle? Surely another one will come along if you wait a little bit.

__________________
84 300SD - bought in April '06 with 237,000 mi