Hello!
I would suggest dividing the whole area into long skinny strips of pasture, preferably over 40 paddocks.(long rotation breaks the parasite cycle.)
I think you could run 2 beef steers on that amount of pasture.(I would recommend a smaller breed like dexter.)
Another option would be raising sheep as they are more appropriately sized for small pastures.
Finally I would suggest rolling out hay all over the pasture, specifically in low fertility areas.
This way you won't have high fertility only built up in a sacrifice lot and instead will improve the forage more evenly across the whole pasture.