cheers for all your comments and questions.
here goes: would also love to fit a knard on the rear, but I had to choose between large tyre or short stays, the way the bike feels I think I made the right choice. Having sad that, a 29er+ platform is something I'm interested in doing.
layback post - what I had lying around (like I have Thomson posts just lying around)
Chain tension is going to be via EBB. It will come fully prepared so you shouldn't have any issues. Next batch will include regular threaded bb for those that want.
re sizing, at this stage I'm only producing the one size. It can be shrunk pretty well, but if enough people are intrested I'd be willing to consider a smaller frame.
Oh yeah, frame comes rustproofed too.
thanks again for your comments, Andy