Mower type
I use a ransomes 213D on my 2 acre garden second hand about £1,000 when the blades blunt simply but another and use the first as a spare parts dept.
84 inch cutting width with hydraulic drums , gives a great cut.
runs a reliable Kubota deisel (red deisel agracultutal keeps running costs low)
with hydraulic powered drums if you get a jam you sumply move a lever to put the drums in reverse.
these are what councils used to cut school playing fields , many cricket clubs use them.
not good on boggy ground as they are quite heavy (but with wide tyres) and no good on long grass, great for a golf club fairway and because of the width quick for a runway, but dont let the grass grow long between cuts