If you don’t mind me asking how old is your tank? Have you had any issues with salt creep on your electronics? I think I’m going to do the same basic idea you have there. I’m trying to finagle a way to get a larger ATO FW container in there also. I just got back from Lowe’s and all they had was white melamine board (I wanted black since the tank cabinet is black). I got an 8’x15” board and a couple packs of hinges and some of those cabinet magnetic keeper-closed things. I’m gonna see what I can come up with. ATO container might end up finding home being on the outside next to the stand.