Thanks for your help (and your welcome)! I'm looking forward to exploring this site too...
I have done quite a bit of research elsewhere, so I've read about the chain wheel issue which, I understand, can apparently be negated with an after-market, more offset chain ring, .
Having had a good look at the BB, I could machine off about a mm either side, which would help with the installation and not effect the existing crank set being re-installed, should I wish to sell the bike on at a later date. Out of interest, which has been you most popular conversion kit?
Thanks again.
J