I'm looking to upgrade from an older Hesston to a new to me baler. they Kubota network in North Texas is strong so considering going with a BV4160 or BV4180. Any advice or recommendations? I have a Workmaster 75 so low on the HP range but not wanting to upgrade to a bigger tractor yet. Does anyone know if the 4180 is too big for my tractor? On the Kubota website it just says horse power range of 40-60 which is extremely unhelpful!