Advanced Performance Center do pre purchase inspections which usually include a dyno run, comp test and general check over of engine and body as well as roadtest.. not sure on price best to call and find out exactly wats involved. I'd strongly recommend at least a comp test as i've done a few recently on tidy, standard, low k fresh imports which have low comps mainly in cyl's 5 or 6. 32 gtr's are becoming a bit of a land mine situation when it comes to buying as they are gettin old and in the case of low milage ones, once they start getting driven regularly things will break. a few more things to look at are oil pressure, temp and front torque-split gauges, abs pump leaking, rust, conditon of brakes - discs especially for cracks, clutch and brake pedal feel. also that all the numbers on the odometer are in line. These are simple things u can check before getting a full inspection done. hope this helps