Large square baler needed

Hello. I have a good outlet for large square bales, either 3x3 or 3x4's, but only have a JD 7410. I'm on mostly flat ground with a grass alfalfa mix and a lot of folks have told me I'll be fine with a 4755, and some even think I can run a 3x4. This seems unreasonable to me. What do you all think?

Large square baler needed