And if you'd pull those AA guns off and mount something lighter and better suited to antipersonnel uses, say an M55 quad .50 mount fitted with a pair of Mk 19 40mm automatic grenade launchers and a pair of miniguns, you'd knock off a couple more tons. That difference could either be used for side armor [an M55 mount has its own armor plating] or more ammo, always a good thing, or just more speed and power. And one fitted with a HIAB boom crane and towbar would make a pretty fair breakdown truck capable of towing a failed BTR152 or pulling its power pack. Yes, I know of a couple of sources for M53/59s, with the guns still greased and wrapped in plastic. Sweet.
Hey spatzie: anyone in that lefthand photo look familiar?