I live in Canada so I can't exactly recommend a certain place to order from, but I can give input about racks.
I have my males in a 28 qt tub. My smaller girls are there as well. For my larger girl I have her in a 41qt Rubbermaid. I'll be getting a 41qt rack though. She's 2500ish grams so way too cramped in a 28qt.
My racks have enclosed sides so I don't use hides. It makes it like they're in a gigantic hide.
They're on bounty paper towels with glass heavy bottomed dishes.