$8k is in the right range. Ask about replacement parts: trans, cooling sys, suspension, timing chain guides being the big ones. Pay for an independent PPI. Whatever you find in the PPI, use as leverage in the negotiation.

__________________
2002 X5 4.6is - Titanium Silver / Black Alcantara - Dinan Stage 2 - Bilstein/Eibach - Brembo BBK ----SOLD---
1993 318i - Brilliantrot / Tan - bone stock daily driver