I'm seeing daylight on the idea that I will eventually go down this road, and want to see what is really needed. I have some very detailed pictures of the HPN shock bracket, so I know how that is done. My question at this point is really about the shock: is a standard 1100GS shock dimensionally suitable for that installation? I realize that it may be a bit stiffly sprung and valved, but those things are fixable. If this can be made to work with an 1100 shock then I think I may have a low enough barrier to entry that I can get serious about it. I have plenty of R1100 swingarms lying around. The R1150 one is actually nicer looking, and I think slightly shorter, but if an 1100 shock works then I have nearly everything I need. So, you folks that have this conversion: what can you tell me about the rear shock that you have? Are you using the HPN bracket, and how long is the shock?