Britains have plenty of options for both 5000 & 7000 castings without them having to label a model up wrong. I would say the most obvious choises would be:
5000 Casting
774 Equal sized wheels and white County style cab
6600-four Smaller front wheels Early models had the County style white cab & later versions had Ford bubble Q cab.
6700-four very similar to the above with white County Style cab. Main difference was Ford 6700 style gearbox.
7000 Casting
964 Equal sized wheels and white County style cab
7600-four Smaller front wheels Early models had the County style white cab & later versions had Ford bubble Q cab.
7700-four very similar to the above with white County Style cab. Main difference was Ford 7700 style gearbox.
I will try and post pictures of a few of these.