Already well on the case with the fuel filler modification, think I mentioned it in the first post when I outlined the plans.
The 1Z doesn't have an in-tank fuel pump at all, the engine driven injector pump acts as the lift pump on its own but I'm going to retain the 8V in-tank pump anyway. I've devised a modification to the fuel lines to allow any excess fuel to return to the tank before it reaches the injector pump (basically a stepped 'H' fitting in the feed and return lines). I'll describe it better once I've built it :)
Supercharged - I'd be really interested in seeing some pictures of your TDi if at all possible?
Cheers
Tom