Granted this may well be legitimate but some alarm bells have rung when looking at this ad on pinkbike..
The seller does seem to have sold a lot of bikes in a short time period and 4 since Xmas. The profile has no other activity (faving pics/vids etc) other than selling albums. There is also a wanted ad for a "top spec bike" from the same user.
I've messaged the seller, and unfortunately there's no purchase docs with it as it was bought second hand, but theres a frame number and he reassures me the bike can be "checked out" (not that i know how or where to check).
Apologies if the seller is reading this and its a genuine sale, but i'd rather be safe than get caught up in a mess, i'm sure you can understand.
http://www.pinkbike.com/buysell/1795391/