UKPassats

Hi, I've had this 1996 B4 VR6 'Exclusiv' (Jap import) for a while and would like to convert it to manual as the 4 speed auto does nothing for me and I am hoping that a 5 speed manual should give me more mpg (as my journey to work involves motorway driving). Do the manual Corrado VR6 clocks fit? Also, does anybody know if I could use a newer model box? I had a mk2 Jetta VR6 (2.9) and when the VR6 manual box went, I put a VR5 box in (which was far better imo) and I would like to do something similar with the Passat. If anybody doesn't know but does know a specialist who could help that would also be appreciated...

Cheers

Jon