Just seems very odd practice.  Even if they had the parts in stock they must have cost something somewhere.  So taking £1200 less The cost of the parts, less vat on the margin, commission etc etc.  Still think they paid way too much for it!  If the car is/was £7k new list price you want to be at least £750 maybe a grand cheaper than list.  Then you want a net margin of around £800 so try and deal a front end £1k starting at £1500/£1250 basic margin; no prep car means you would pay more.  I would think it was only really worth what WBAC actually bid.  Especially if we are talking years ago now.  Nowadays taking a handful out of a car is difficult, fair play if that’s what you got and he returned.  Just don’t think that’s particularly sustainable in my experience.