i made the frame for the new cage for my new veiled chameleon it is 25x25x50 it will be outside in my backyard so to protect the wood what should i use latex paint? or varnish? also i havnt got the screen yet because i dont know wich one tu buy. at home depot they just have the normal metal screen and the one made of some type of soft plastic. they also have metal screen with 1/2 holes and a type of screen for gardens that is made of hard black plastic that has 1/2 holes. what should I use?