Thefnshow,
I've been running mine regularly now here in Malaysia where our track temps are about 55 deg C. Setup wise I've managed to get awesome results with Sway bars front and rear and softer rear springs than those that come with the kit. I also use the TOP gear diff with 300000 wt oil. We run BL 17.5 T without timing. The only problem keeping up with the FF03 boys will be the gearing limitation.
Get the rear grip sorted and the car is very rewarding. I use 3 deg of rear camber and the standard 2.5 toe blocks. Read tire wear is so low that the excessive camber is acceptable. You'll go through 3 sets of front tires fr every set of rears.