Hi, I'm trying to get a rough idea how much my Xizang is worth, It's '97, an 18" frame fitted with shimano xt gears and brakes, rock shox forks. It needs a little bit of work doing- the forks need pumping up and I'm struggling to find the needle valve adaptor anywhere, the front assembly is a bit rubbish and it needs a new chain and a good clean. What do you think this little project might be worth to someone?