The way a mentor would work really is to help the new guys avoid the mistakes at the first time around, this means that some of the guys that just did Roth, IMUK and Outlaw are more than capable of helping the new ones do this, you don't have to sort plans out and critique, just chat to people over email and be a sounding board, if there is something you don't know, point them to the forum, thats what its for.
Cona, will be riding I hope over the next few weeks regularly, did a nice hilly 85 today round Cheshire and you are more than welcome to join in. We can chat then or after over coffee/cake.