Well I've finished it at last some 5 months after starting it! I think the 2 months play testing slowed things down.
My cab is make from Birch Plywood with a WG9200 monitor, XP2200 MHz and a 6 channel sound system built in. It also futures a built in remote control for the sound system with the remote sensor mounted in the bezel.
Cost for this cab were around $2500.
Gary