"I have heard of people painting the inside of they're shell with lexan paint, and then the outside with normal sprays... though I have no idea why you would feel this was necessary."

That makes no sense whatsoever. Whats the difference if you paint the inside or the outside of the body with regular spray paint. No matter hoe you do it,It will always be wrong, and always look bad. Just sounds like a waste of a perfectly body if ya ask me....