I am wanting to get my snakes out of their glass tanks but am having trouble locating a tub big enough for my 5 1/2' RTB... I found one that Vision makes Called a Boa Tub... But it is 65 Bucks... For a plastic tub! Is there a cheaper version that is big enough that would work... Or should I just say forget this and build him a Big permanent 4x2x2? It's just I like the space that a rack system saves.