Thanks Rob. I looked at Jules Pot database before when I was investigating this more closely and I think I found inconsistencies between differant versions of the diagrams and Jule's DB. I was planning on eventually measuring mine to confirm (haven't got around to it yet because I'd have to desolder the pots from the circuit to measure them). I'll do this eventually.
drbassman, regarding the trapeze. You can use a geetar one - file the 2 E slots bigger to accept bass-size strings and make 2 new slots for A and D (or use the geetars A and D but widened away from each other if that makes sense). That's what I did because I couldn't find a bass trapeze short enough (the Hofner was too long). If you look closely, you can sse that the D string heads slightly North behind the bridge:
As for the bridge proper - I hate those unintonatable jobies, I wonder if the tune-o-matic style (as found on Ibanez Artcores) would fit on that base, just like geetar tune-o-matics will.