OK, so I ended up with the 12r.
I have a new shock to build - so thats good. Front end is associated, so no issues there.
IS there anything I should order a extra few from BMI??
I assume parts are available? Those hockey stick flex bars - do I go through them? I have a carbon set in now I think. I think I have a spare set of FG ones.. though someone coloured them black with permanent marker I think.
looking forward to trying this out.
James