Had same problem with my BX23S, so I made my own 'sunshade top' that clear garage door by 3/4 of an inch. Also removed seatbelt. That was4+ years ago, about 900+ hours of use. Should my widow want to sell the tractor, the original top ROP section is in the garage next to the 3PH I've yet to install.
While there are those that say 'never alter the ROPS', I've owned and used 20-25 tractors,none with ROPS and over the past 3 decades, never once got close to rolling one.
Only you actually know where and how you operate your tractor, so it's YOUR decision.