I'm with Willys. I'm not going to tell you if your purchase is sound or not but..........
Just remember that buying a bike with mods included can be a very smart move, as you can end up saving large. I have spent at least 100% of my 09 purchase price on mods, does that mean I thrash my bike; no, it means I love my bike and make sure her every need is met.
IMHO look for a very nice modded bike, say with a 685/705, crash guards, maybe heated grips, a better seat, taller wind screen and save huge. Just the three mods I have mentioned would cost you up to $1,500.00+, not including labour, Stage II heads, exhaust, etc, etc. Yes the seller would try to recoup some of the cost of the mods but would be lucky to get back 25%.
Just an option. Goodluck