I am currently in the process of building custom fit battery trays and boxes. If anyone is interested in one e-mail at jeromechambersii@hotmail.com with battery dimensions LxWxH. Please allow two weeks build and ship. Cost $20 for battery trays and $40 battery boxes plus shipping. Also if you want a picture of my work send me an e-mail and I will reply back.
That price is for a galvanized or aluminized tray or box. Stainless and aluminum would be $5 more. Steel trays or boxes are $5 less.