I know I have no right in forcing the OP to do anything, but I can make a suggestion as to what I would do. I will add I am no expert by any means, this comes from what I have learned here.
I would choose one to stay in the tank. I would choose Cleo because I personally like lloking at the big females.And by that I mean I like looking at their enclosure, because a happy bp is a hiding bp.
Then I would go to Walmart/Target/Home Depot/Lowes and get three Sterilite tubs based on the BPs' sizes. A search around the bp husbandry forum will give you a good reference for size. Then I would pick up the necessary supplies for each tub: UTH, water bowl, substrate, hides, etc. Then I would set it all up on a tstat and voila.
Although I have never used tubs myself, I hear they are a ton easier to maintain temperatures and humidity compared to glass tanks. I've done a crapload in keeping my temps right in my 20 gallon. But if you're like me and enjoy watching a seemingly empty tank full of fake plants and jungle themed objects, you could keep a tank for one of the BPs.
This is all just a suggestion. The OP can do whatever he/she wants. Whatever you decide to do, I'm sure all of us would like to see pics and hear about it.We just love our pictures here.