Want to do a little touch up on my 37 resto. Leaving original paint and rust but have a couple new parts and a couple of parts that are wrong color. Would like to spray a little original paint on these but not doing entire part and leave some rust. Can you fade paint with a air brush not leaving a direct line? Want some complete paint areas fading to rust. Also are the 20$ - 50$ ones any good? Any help would be appreciated. Thanks Bill


1937 GC