Honestly, a 4 door chromie with no engine - I'd probably advertise in the 40-50k range and expect to get offers in the 30k range. I don't see any universe where this car becomes an R200k machine, even if you spent the sort of money to do an engine swap and the assorted goodies and a respray I doubt it becomes an R200k vehicle. The really desireable E30s are the 2 doors and the plastic bumpers, a 4 door chromie with no engine is likely going to end up being a spinner car.