I have a MP 04 Convoy that has some chips of paint come off and a really big scratch from when Cybertron Metroplex fell on him. I also have some G1's that could use some paint chips fixed up. First, what type of paint should I use to patch them up? I'm guessing theres some hobby paint or something like that I should use. Second, would I just get a fine brush and paint where the damage is or is there a special technique to use?