I am not in a position to take this on but you can get almost everything to bolt a system together with the exception of the intake (from the stock airbox MAF to the turbo inlet), the charge pipe (from the turbo outlet to the TB) and the downpipe (from the turbo to the stock exhaust) Any decent shop or exhaust shop could do that for you.
If I was building a BUDGET system to mimic the TRD SC that is; low boost, approx 60-90hp increase, no intercooler etc this is what I would do.
Remove stock manifold and y-pipe and bolt on the
Treadstone cast manifold with T4 flange and wastegate flange built in - $419
http://www.treadstoneperformance.co...name=Toyota+Land+Cruiser+1fzfe+Turbo+Manifold
Then bolt-on a
Borg Warner S200SX 770 Turbo, T4 single scroll, WITH V-Band flange. - $848
http://www.full-race.com/store/turbos/borgwarner-airwerks/borgwarner-s200sx-7670-turbo.html
Then bolt-on a
Tial 38mm Wastegate - $239 Get both the 6psi and 7.5psi spring
http://www.treadstoneperformance.com/product.phtml?p=453&cat_key=157&prodname=Tial+38mm+Wastegate
Have an intake tube made from the turbo to the stock air box, weld on the provided flange and bolt-on a
Tial Blow Off Valve - $259
http://www.treadstoneperformance.co...9&cat_key=3333&prodname=Tial+Q+Blow+Off+Valve
This is kind of tough but remove the lower oil pan and bolt-on the
Treadstone turbo oil supply and drain kit - $105
http://www.treadstoneperformance.com/product.phtml?p=67759&cat_key=614&prodname=Turbo+Universal+Oil+Supply+and+Drain+Kit,+Pro
Bolt-on a
Downpipe V-band flange and v-band to connect to back of turbo - $63
http://www.treadstoneperformance.com/product.phtml?p=69196&cat_key=662&prodname=Treadstone+S200SX/S300SX3+V-Band+Downpipe+Flange+V42350
Add the
Silicon Coupler to attach MAF to Intake tube - ~$8
Silicon Coupler to attach Intake tube to Turbo - ~$8
Silicon Coupler to attach Turbo outlet to charge pipe ~$8
Silicon Coupler to attach charge pipe to TB - ~$8
tighten the bolts on the
4 Worm drive clamps - $10 (2) for the MAF to Turbo inlet, (2) for the turbo outlet to TB
http://www.treadstoneperformance.com/product.phtml?p=67769&cat_key=612&prodname=Worm+drive+Clamps
So this is $1985 and mostly "Bolt-on"
All you would have to do is bolt this on, and have someone fabricate the Intake pipe, the charge pipe and downpipe. And you are done. You can swap the Wastegate spring between 6 and 7.5psi of boost to see how everything lines up, the turbo is very undertaxed so intake temps will be fairly low. Again this is not my all out performance build, but this is all very high quality, there are no Chinese crap parts like in the CXRacing kit. This is going to put you almost identical with the TRD SC'r but it will also have some of the same issues those guys can see on really hot 100+ summer days with high intake temps, because neither setup has any kind of Intercooler but the TRD guys have been handling this with meth injection, after the fact intercoolers or higher octane fuels.