I've seen a few requests for this in the past, don't see it for sale [second hand] very often either but oddly it's still available on DMC's website:-
 
http://www.dmcworld.com/store/   [Look under Public releases & Mixmag Live on the navigation bar].
 
Couldn't tell you if it's a repressing or old stock or not [some of the older ones are listed as unavailable]. Anyway, £12 is more than reasonable.
 
Also seen the absolutely top Coldcut "70 minutes of madness" mix CD for sale again in HMV or somewhere last week whilst having a mooch. Can't recommend it highly enough, especially seeing as it [the original] tends to go for stupid money.
 
NP: Andy C/Ram Raiders.