This hasn't been covered but I have been thinking about it a lot and doing a bit of research. The frame in the NineT is similar to the HP2 but not identical. The bike was actually built by Dutch frame/bike builder Nico Baker back in 2009 and was almost certainly based on unsold HP2 stock and the spare parts bin. The NineT frame features slight set back pegs and not straight pegs like the HP2E or MM. That could be a problem depending upon what you want to do with the bike. In addition the ground clearance is very low due to the S1000RR forks and associated low shock so you'd be looking at new forks and shock = ££££. I've heard that BMW have ditched the original plans to sell the NineT with wire wheels and tubed tyres and instead will be offering the bike with cast wheels and tubeless tyres = better if you're planning a MM style bike. All in though, the NineT would not be a cost effective HP2 copy - you're looking at 11.5K for the bike + 2K+ for suspension before you've even started on bodywork. It would be a great project though and I'm sure the like of TT, Wunderlich and maybe even HPN have kits planned. You go first and post a build thread.