I'm making a plywood aquarium. Dimensions are 84"x26"x30".... do I get a sheet of glass that is 84"? Or do I get it a little smaller to fit inside my face plate? Also the glass company quoted me $450 with the glass ends polished, as well as tempered. Do you guys get your edges polished? How about the whole sheet tempered? Thanks for all your help. I can't wait to get started. Just want to clear up a few things. I've been researching a lot, I don't want you guys to do my research for me. But I couldn't figure this stuff out. Thanks again