Ive got a 32 GTR with similar mods to what you want, 2530's, Tomei 260 poncams, powerfc, avcr and camgears, making 330kw at the wheels. Also has HKS twin plate in it (which is meant to be one of the more vicious to drive on the market), full whiteline suspension and its still quite nice to drive on the street.
In my opinion, it has reached the level of being an extremely quick street driven car, while still maintaining response and driveability etc.
It can certainly be driven daily, I just dont as I have a commodore to rack the kms up on instead of the gtr
EDIT: Ive also smashed a gearbox (3rd gear) with the current setup, but I was doing extremely ham-fisted 2nd -> 3rd gear changes. I take it a bit slower now and dont quite use as much force to change, and work the throttle in from 75% -> 100% instead of just mashing the pedal and havnt had a problem.