@ Higgy.
Yes depending on the level of armouring.
Used to collect armoured RR's, would only put 1 on a full load of 7 RRs and that would be the last vehicle on over the trailer axles as other decks not designed for that sort of weight in such a short vehicle, windows don't open, you need arms like Charles Atlas just to open the blinking door, yes around the 4 ton mark and i don't recall ever seeing the extra overlaps but no doubt more secure plating was possible. A standard L322 was supposed to weight in at 2.5 tons, slightly lighter than the different chassised Sport/Disco 3 at 2.7 tons.
@ Bob.
Should be an easy rebuild, new windows and doors and front bumper/bonnet plus replace armour where hit, too expensive to scrap i would have thought.