Turbo project

[Spindoctor]

I am currently building a turbo 3.3 out of my old 91 SVX. It now resides in a 98 impreza, with an early WRX 5spd. Thats 2810 lbs with the driver.
It will have either a GT35R or T04S60-1.
On paper it will run between 16-18 psi. Final boost will be determined by its behavior on my dyno at settings (maps) for both pump 92 and race 101.
The pistons will be custom forged and probably around 8.8 to 1.
A stand alone will run the system. Looking at Autronic, Motec or even
perfect power. I have tuned dozens of different systems & most of the full stand alones will do a decent job.
My questions for those of you more familiar these motors than I ( this is my first 3.3) are:
Does anyone build a fuel rail to convert to the more common PNH injectors?
Are there rod and piston sets already available? or Who is your favorite manufacturer.
What kind of block mods should I consider when I do the tear down?
And is there anything, besides the inevitable broken drive train parts , that would put the brakes on this build before I continue?
Calculators put the crank h\p over 475 on 92 and near 600 on 101.
I know how a real world build usualy turns out though and I am shooting for a realistic 400. Any more will be a bonus.
Any and all coments are apreciated!
Thanks in advance- Tim H (aka The Spindoctor) Dynoauthority