Lyall, Someone else can probably tell you better, but I am thinking that; moving the engine foward is not the best idea.
You have clearence issues between the fan and radiator, exhaust & fuel plumbing to contend with, possibly electrical wires to contend with, and maybe other clearence issues. I think your easiest solution would be to have your drive shaft re-tubed to the length you need. Again,someone who has done this can tell you more, but you will also have transmission mounting to deal with, but I think that is an easy fix.
