When I replaced steering with a Sea Star hydraulic, which I needed because I installed a jack plate and didn't want the cables to bind i had to change out the seats.
The problem that I encountered was that the wheel now was 6" more offset from the bulkhead with the new binacle, which made it difficult to get between it and the seat. So I had to swap it out for a tilt unit. Even then it was a tight fit. so rather than moving the pedestal back. I changed out the seats, which I hated, to Garelick bolsters and took the bolster off the drivers seat.
I like the open cockpit. So the sliding lounge like my firend has on his 275 just took up too much room. IT's really nice though, but really heavy.