im buying a used Black templar dreadnaught off someone and the model is more or less unifinished (looks like he primed it blue and then decided last minute he wanted to make black templar instead). however it has a decal on its leg already for black templars. i play dark angels and while coming up with a new decal isnt hard, how do i remove the old one without severly damaging the model

? how do bring him back from oblivion guys? (also this guy is kinda cool in that he added a kalabite warrior with a splinter rifle getting crushed by him which is kinda cool, im probably keep that).