Try pirite 4x4 That's where i got my list of part's from or you might be able to talk to the guy that's selling his on this site,and ask him where he got his set up at.good luck..
I had good luck with this guy on my buggy. Troy ahd good luck getting his supercharged buggy done with pane from him also.
I helped my friend put together a 225 impco mixer and a model E regulator and a vff30 vacum lock off for his toyota. It was simple as bolt it up and no tuning needed. All we had to do was make a simple adapter out of aluminium to bolt the mixer to the base plate of the stock toyota carb..................................you can get everything as cheap as $225 minus hose & fittings and a tank. Steel 8 gallon tanks are cheap and easy to come by, and hose & fittings can be purchase at williams Oil and Filter in Tacoma