If the suspension arms/bushings/ball joints have been done as well... I'd also go with the 139k one. He saved you $3000+ in parts/tools by doing VSS, air suspension, and other maintenance, plus hours and hours of labor. Offer $10k and you'll have a nicely sorted X5 that shouldn't need attention immediately after purchase. The other one will, trust us.

__________________
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)

2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)