The bike itself looks pristine. With 5,000 miles it's barely broke in and will probably have the original cam chain tensioner and basket to replace at some point. The first valve check is 26,000 miles and convenient. Unless you see something which is out of place, the bike is going to be like new and will be great.
As for price, run a search on CycleTrader, then another on Craigslist. Take prints from each with you and you ought to get him down closer to the $10k that Greg mentioned.
Welcome to the group.