STONE CHIPS
Mines had 30k when i bought and had a few stone chips on it, the paint from factory is terrilble, rear wheel arches front wheel arches bumpers etc
at 120k i would imagine it will have its fair share, if not i would imagine it has had paint so check on that.
open the charge cooler bottle at rear of bay, make sure theres a steady stream of water jetting from pin hole when cars running, also check clutch is doing its job so make it work in a higher gear and build it up to see what happens when boost comes in.