Hay equipment

I am interested in putting up my own hay so I need to purchase the equipment to do so. I have an International Harvester 574 tractor, pto is 52 hp. with a hydraulic pump output of 11.9 gpm. I have looked at some of Vermeer products as well as Massy Ferguson balers, but am open to other options. I would like to do round bales . Also since I am just beginning/learning I would like to purchase used equipment to keep the cost down. Any advice on balers and mowers would be greatly appreciated.

Hay equipment