No problem!.......BUT
Be very very careful to introduce rams in either pens next to each other or paddocks next to each other away from sight, sound or small of girlies!............also be very very careful introducing horned and non horned breeds.When everyone has got used to the guy in the next field/pen and the warring has calmed let them all intogether in a BIG field with lots to eat and not a girl in sight....they should be ok!