Not one for the purists, but popped into Homebase today, and they have their version of the Weber 47, for £29.99.
I know it's not a Weber, but for that price, it would be a good back up/starter unit or good for extra capacity at the WoodSmoke Forum National Smokers Weekend.
Might get one, as I do not have this type of smoker, and they are certainly easier to transport to The National!