I really want a drz400 and have been watching Craigslist for 2 months now with very little luck. The other day a guy in my area posted an ad for a 2007 drz400s with 10k miles on it for $2000. It needs a new top end (abuse? What causes a ruined top end?), which is bad news, except that I plan on installing a big bore kit in any Drz I get (unless already done). Is even considering this bike worth it? At what price would you buy it? $1500? $1000?