Most cost effective way to paint RC body & normal plastic models?
 

From whatI read Ineed to use polycarbonate paint for RC car bodys. I dont know what type of paint a normal model uses. But what would be the best most professional system for this? I was thinking of buying an air brush kit, but I do not know if that would be the correct choice if I will be doing both.

My roommate said I should just buy spray paint and use it on the RC body and Iassume he will say the same about the model.

Question is, do you buy 2 different types of kits for each or use one for both?