want bigger tractor

I have a BX1800 with mmm.I am looking at getting a slightly bigger tractor.I have a ford 8N also.I want something in between these size wise.It must have fel.I want something that standard 3pt implements will work not special sub-compact implements.What models should I look for must have HST & 4 wheel drive.Want the fel to float.Looking for used.Kubota,John deere,etc.Prefer Kubota. Thanks! for help