Your whole set up is engineered for this turbo
BW400SX3 82mm forged compressor with 1.25A/R rear housing (T4 flange). It will do everything you want, suit the bridge port, be very low stressed, highest power at lowest boost setting.
I'd match it up with a single 60mm waste gate, as these sound the best 2 to 1 really screams, twin gates sound gay unless you merge the pipes *personal experience/preference*
I made over 1000bhp on this turbo, and it works on 500bhp 13B's just as well, it is very very hard to beat. Its physically not small! but its damn reliable and one tough mother fucker!.... great bang for buck.
I hit full boost (any setting) below 5500rpm and can rev to 10,000rpm not a problem, see GTR below RB26, which are a cuuuunt to spool turbo's (over 1000rpm slower than 13B's)...
This is the turbo you want BIG POWER, low stress, very durable...