Have my copy of VOL III to complete the set here in the USA. There is no better or more comprehensive reference detailing all of the various pattern British and Commonwealth Universal Carriers, including the T-16 being a USA-built vehicle. Can't recommend it enough.
People that don't jump on these while they are available will regret it when they go out of print. Limited print runs often take a very long time to be printed again due to the startup cost. And in some cases, never happen again.