No budget constraints?! niceee.... i would:
FMIC
3" Dump/front
Walbro GSS-341 Fuel Pump (best performing/price)
Nismo adjustable fuel regulator (better than Sard varient)
550 CC Injectors
Z32 AFM or Q45 AFM
Tomei Poncam (or just the camgears)
..and i hear Whiteline's "Pineapples" are top notch
Of course you'll need to dweal into the world of the electronic side of things, to control everything. Power FC will do, pretty much, it all.
You will have yourself a weapon of mass destruction. yay hope I haven't bored you