I built myself a 60l mash tun during the winter but have decided not to pursue all grain brewing because I simply don't have the time or, according to my wife, the patience.
The Tun has a copper manifold and lever operated ball-valve tap and is also wheeled at one end. I did use it a couple of times and it has excellent and temp maintenance - loss of 1 degree in 2 hours.
I live in Wexford, any interested brewers can PM me and we'll take it from there.
Aidanmac