So I just ordered this new cab: -
It's from a custom builder in Bristol (Custom Cabinets and Guitar Amp Cabs | Zilla Music UK). They usually cost £240 unloaded, but I got this one ex-demo for £260 loaded with 2 12" Tayden True Brit (British-made Greenback clones) speakers. The guy tells me it's been used at a couple of trade shows and is otherwise in mint condition - just with the speakers run in.
Should arrive tomorrow - v. excited.