im just about to repaint my King Tiger, but i have some Q, i know you guys will be able to solve my problems here

1. if u repaint the model, do u use thinner to take off the paint ? or you just spray it with premier again ? or you have any other solutions?
2. im thinking to make it a little bit snowy. and im just wondering do still use the weathering tech? if yes what colour will u use ? i still want to give the camoflage pattern appear.
3. how to make the snow looks dirty ,not purely white, what colours will u use
thanks for you help

