Hi,
Matador Models make a range of military vehicles and a few rail vehicles. I have a WW2 warflat of theirs, only after I had altered the bogie mounts did I notice the jacks were missing so I am finishing it as a bogie bolster, probably as an internal user. Matador also have a warwell in the range, I haven't seen one but was told it was easier to build than the Genesis kit.
I got my Matador kit through Scalelink. http://www.scalelink.co.uk/acatalog/Armoured_Train_Range___Scale_1_76.html
Paul