They will fit, the original air box will have to be removed and a bracket made up (easy, a strip of aluminium or steel and a couple of cable ties with 2 holes drilled in one end to secure it to the engine bay). In my opinion though you would be better off replacing the stock panel filter with something like a K&N or pipercross hi flow panel filter. usually about 30 to 50 quid though. Same performance increase, which is barely noticable due to engine size and weight of the vehicle. If you go through deep water though it may avert the soggy air filter problem.
I also drink Port and I'm not ashamed to say it!
Me Truck