That's what I understand...
Your buddy has a tough search coming up, I think.
Best bet would be call every Toyota dealer you can, I'd say.
The only bolt you don't re-use from stock should be (According to Gadget @ URD) 8x1.25x170mm socket headed cap screw... Order from your favorite bolt provider.
Call TRD for the cable bracket
TRD Supercharger Belt - V6 3.4L
(Part #PTR30-35040
TRD Replacement Check Valve - One Way (3.4 V6 S/C)
(Part #PTR26-35042)
Replacement Throttle Body Gasket - TRD SuperCharger (3.4L)
(Part #PTR26-35041)
TRD Tensioner - (Part #PTR26-35040)
Post a picture of exactly what he has and I will look a little harder...