I'm actually doing something very similar right now. I'm going to a shop in town where they specialize in AN fittings. You will need a turbo oil pan, injection pump (preffered over NA pump tuning), turbo with manifold, and the above said drain pipe. I'd also strongly recommend Boost / Oil temp/pressure gauges as well. EGT gauge is a MUST. I tried ordering the oil drain fitting for the turbo for a 82 Jetta TD but the fitting ended up being the wrong size from VW. Any idea of what year/model to order the fitting from (just in case I can't get a custom fitting, I'm using the KKK k14 as well). I'll post pictures and specs for the parts when I get them on Monday.