That’s wonderful, I’m so glad it’s being so helpful, sounds like you guys are doing great!
My advice would be, don’t do it in a plastic cage (I don’t know what the TS-3 is though). They weren’t as comfy but the big issue when we tried much longer in that was he got stinky fast, even with washing – very off putting. Check out our cage recommendations and treat yourself to an early Father’s Day present with a nice metal one with a solid ring – they’re so affordable now. And the smooth ring of them is so much better for longer term.