[C-unit]

I am currently going to swap a RB26 into my car, i am wondering if any expert can give me any suggestions.

Here is my part list.
R33 RB26
-HKS GT2510
-XS power turbo outlet
-Tomei 1.2mm HG
-APR head studs
-N1 water pump
-N1 Oil pump
-Tomei fuel rail
-sard FPR
-sard 700cc injectors
-Apexi power FC

of cuz, all belts and tensioner will be changed before dropping the engine in.
I am mainly using the car for autoX and drifting. Are all those parts necessary or i can take some of those out?? i am only amiming for 350whp. I am looking for response more than anything else.