While all these look cool they are impractical since most of the vehicles you posted are huge gas guzzelers... the M-1 has a jet turbine engine on it and has a huge support team just to keep it running! when they go into battle they ride on the back of a HETT to save gas (and those thngs have their own problems)

If you need armor go with the 1151 Humvee or slap some armor on a Land Rover.