your also going to want to step up the injectors to at least a 96lb/hr or ~1000cc/min. what MAF are you going to run?
a 38mm wastegate is on the small side....especially if you want to run low boost on a larger turbine wheel, or with a well designed exhaust mani with lower exh backpressure.
what are the specs on the T70 you are looking at? basically if you step it up to a t4, the trq curve will shift to the right/higher rpms. it will lag more, but when it hits, its hits
