Hi Ossie,
If you are referring to the Bovington example Manchester it is actually a Mk I as it has a petrol engine.
see here:
http://armorama.kitmaker.net/modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=3208
Simon
For references Dick Taylor's Valentine Part 1 and Part 2 are excellent and just released is a more comprehensive volume Into The Valley, which I'm enjoying at the moment.
http://armorama.kitmaker.net/modules.php?op=modload&name=Reviews&file=index&req=showcontent&id=5418
http://armorama.kitmaker.net/modules.php?op=modload&name=Reviews&file=index&req=showcontent&id=6039
I built the MiniArt Mk IV as a Mk II training tank which I enjoyed and am already committed down that route as I have their Mk II and Mk I kits so will probably stick with them as they already have the Mk XI, Mk V and Mk III
http://armorama.kitmaker.net/modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=3403
It's great that they is a good selection of choice now with the AFV kits also coming onto the market, as this is a really interesting vehicle with good Post War options too. I do hope we see a Sissors Bridge from either MiniArt or AFV Club.
Al