[Berman]

I can't recommend this guy highly enough, I have bought lots of kits and parts from him:

MC8 8X8
http://www.stellamodels.com.hk/milit...ck-p-8071.html

MC6 6X6
http://www.stellamodels.com.hk/milit...ck-p-8069.html

XC6A 6X6
http://www.stellamodels.com.hk/xc6a-...ck-p-8072.html

KC6E 6X6
http://www.stellamodels.com.hk/kc6e-...ck-p-8281.html

Two of them are out of stock but if you email him he might be able to give you a ETA.