I'm planning my turbo setup. And I'm trying to figure out which oil pressure gauge I shold get-100psi or 200psi? What should the oil pressure be for 200SX w/a T28?

the 100 psi gage
the SR runs about 46 to 57 psi @ 3200 rpm and .8 to 11 psi @ idle acording to the FSM

Thanx!! I really need to get myself one of those FSM.