Can you not measure the width of the cases at the mounting points? I think the rear is the same as the later models, but if it's narrower I'd mount it WITHOUT spacers, sling the back wheel in nice and square and line it all up via the chain. You can then measure the gaps for the spacers.
I'd splice the GPS so all gears go to the 3rd gear ignition map. You may loose a fraction in 1st and 2nd, but if you can notice it then you should be riding GP's!
Cylinders should swap at a later date. Never tried swapping MC21 with MC16 cylinders before, but I have swapped MC21 with MC18 and that works well.
My MC21 Ethos pipes fitted the MC18 barrel without any problems.
I think that just about covers it!
_________________
Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
Check us out on Facebook! Please "like" our page!