I'm currently running an 02d syncro 5 speed box mated to a BHW TDI in my 02, but I'm going to take things apart and swap in a newer 6 speed from a T5/6 that I have over the winter. The T4 inner cv joints actually fit on the stub axles of the 0a5 gearbox that I have. If you guys are interested in a factory rebuilt 02d syncro box email/message me on here because I wont need it once it's out. Also, I love what is happening in the Cavevan shop, you guys are doing good work.
Got a response from Frans! Compiling a final list of parts for an order
-Solved the CV axle question. The ends pop right off and you can swap them. We have 3 ABS ends so just need to source one more. May have found one on thesamba
-Took a second look at the MAF and thought hmmm they look very similar why don't I just bolt it in? Well the 1z MAF is of a smaller diameter and is not a simple bolt in swap. Have the question in with Frans whether the 2.5 TDI MAF bolts right in with the proper 6 pin plug or what I need to do to swap. We are wanting to source OEM parts instead of fabricating where possible so we will see what he says.