Yeeeeeee
Full service
Mintex m1144 pads will be good green stuff pads would be good on track though.
Grp N discs off kam are ok or a big brake upgrade
Decent tyres is a must, someone on here had a nasty track experience couse of cheap tyres.
Then id work on the chassis, all mounts, bushes, springs & dampers, braces, torsion bars, ARBS.
Strip it out, buckets n cage it, if it dosent do anything other than track.
Fully synthetic oil is better, that oil will be fine.
A thorough service including draining refilling and bleeding the coolant system might cure your high running temp.
__________________
|