Welcome to an all consuming hobby
Here are some tips based on my experience:
track set up
Definitely look into racing brake fluid -- Castrol SRF is top of the line -- for both the clutch and the brakes. And make sure to insulate your clutch line as suggested above. The Z1 and F.I. 34-row coolers are very similar with a slight edge to the F.I. version.
If your track has right turns, eventually you're going to want the CJM Road Race Pump.