Your underbody mower deck from the BX2200 will not fit the BX23S. I have seen the correct 54" & 60" underbody mower decks being sold on Facebook Marketplace, priced as low as $ 1,000, with a range of up to $ 3,500. It is difficult to understand, but the 60" mower deck is a lot more manageable when trimming around trees and shrubs. To be honest with you, I would be inclined to keep the BX2200 since it is such a robust machine, and use the BX23S for loader and backhoe duties. I have since come to the conclusion that I should have kept my BX22 for backhoe and loader work and purchased a BX2680 for snow work. The BX23S backhoe and loader are easier to remove and reinstall. However, when digging with the backhoe, it is a pain to rotate the seat, especially when you want to move the tractor around a bit. On the BX22, I could just push on the pedal and reposition the tractor with the seat rearward-facing. That's not possible with the BX23S.