dude i put 2gether my turbo kit for $1200 and I coulda done it for less! Skip on the t3/t04e and go with a used T3 with .42/.48 AR's. I will show you how to do it, and if your local I can help you. Heres a breakdown

Manifold+external Wastegate $220
Used T3 Turbo $50
Custom 2.5" mandrel d.p. $50
Tuner toyz Oil Lines $85
Intercooler piping kit $175
BOV $60
FMIC $150
Uberdata basemap $25
Denso 450cc Injectors $70
resistors+seals $20
oil pan gasket+tap $40
walbro 255lph pump $80
total $1025!!!!!!!
Most turbo kits don't include good fuel systems, but this one does and an oil pan seal with tap labor! I can garuntee this is a good 60+whp bolt on @ 6 psi! LS motors are awsome for turbo because they have the lower compression and the longer geared LS tranny. Didn't think you could do it for under $1000 did ya? Well I did, and you can too!