Hi, I recently obtained a triple wide case without the shelves and support rods. I'm wondering if I could get some assistance with the following: What are the dimensions for the shelves? Not sure if the thickness of the shelves varied between the different x-metal cases, but if it did, can I get the thickness measurement as well? In looking at the pictures of other members' triple wide, it appears that the support rods could be a a threaded rod with aluminum spacers that separate and support the shelves? Is it possible to replicate the support rod system with hardware found at a local hardware store? How is the rod held into place on the top-most shelf? Thank you!