Defo do a Cam follower inspection if you haven't already...
PCV "seems" ok
Your clutch may slip, as said above, if so ask them to dial it back a tad, torque is fun but it destroys clutches and tyres (if not linear).
Don't do the injection cleaner this time imo, unless as above your dropping the oil... but do a few half tanks of vPower if you don't usually use it; and have enough fuel for the mapping.
Most of all, have fun on your return journey/s ;)