Great effort, Clive!
During WW-2 several medium tanks were converted into APCs, of which the Canadian Ram Kangaroo is the best known. But it is hardly known that after WW-2 the originators of the turretless tank continued this practise.
See my webpage
http://web.inter.nl.net/users/spoels...04/apcm4a2.htm for some background information on the M4A2(76)W HVSS Sherman APCs which are outlined in yellow on Clive's webpage.
H.