First time rotation will probably take you around and hour and a half, once you do it and know exactly what you are in for it's a 30-40 min job. follow this link where I abbreviate what is needed to do the job and also provide the DIY engine rotation link
http://www.buellxb.com/forum/showthr...l=1#post585928. Have a look through the DIY to familiarize with doing the job then reference my shortened list which will then make more sense. Doing it without rotation, while possible looks like a major PITA! Better to get the engine down where you have a better chance of getting the job done right! If Twinmotorcycles still rotate the engine for intake gaskets, that says something right there IMO.