Rather than destroy a perfectly good painted Toy Soldier, by cutting one in half just underneath the waist ( which is a very easy thing to do - using a fine razor saw, but will probably harm some of the paintwork). You can of course, always touch-up the paintwork after cutting - but why not buy some unpainted cast parts and have the fun of making up new ones instead?
Suggest you have a look at Dorset Soldiers web-site (
http://www.dorsetsoldiers.com/)- then make contact with Giles Brown (the owner) by e-mail, ( e-mail address on first page) and explain what you want to do? Giles can supply different bodies, arms, heads ( with berets/helmets/headphones etc,) - in a variety of styles shapes and poses, suitable for Tank Commander/ Driver/other crew members - either sitting on the edge of turrets - or half in/out (half-bodies - or just head and shoulders too) - for you to adapt and pose to virtually any shape you like - and then paint yourself to suit the vehicle. Parts are simply stuck together with super-glue - or Giles can have them assembled and/or painted for you in either Glossy or matte finish, if that's what you would prefer?
Unpainted castings are mostly, very reasonably priced - as it's the painting of them that takes the extra time - which adds to the cost - but you can save quite a bit by painting them yourself. But - I would think that making up a new figure might be far better than destroying a perfectly good complete figure - which would inevitably, negatively affect the value of a complete tank set that the figure is removed from
Whichever you choose to do though - best of luck - and hope this suggestion helps - Johnnybach