I opened up some ground 2 years ago into a very small maybe 1/4 acre food plot with nothing more than a small plot disc on a ranger a pull behind weeder and a actual shit ton of raking shoveling and bustin up of sod, i then expanded that food plot to about a 3/4 acre plot tucked into the trees next to the river no chance of ever getting a tractor in there, and for me being only 30 and enjoying pushing myself on my outdoor activities to keep my self somewhat fit, but this is no joke that first 1/4 acre was 50% by hand and i worked my tail end off to get that worked up nice and it took the first year i had a ton of turnip in there and the deer hit it hard once the cold weather hit, when i expanded the food plot i got in touch with a guy i do some work for in the spring and fall on his farm and he has a skid steer on tracks with a grapple on it for trees... if there is anyway you could get a bobcat or rent or do something along those lines i would for sure to save on time and if you want to bust up virgin ground and are looking at doing a full acre it is no cake walk, and round-up is your best friend, i think that first year i sprayed, sprayed again, worked up the ground as best as i could let it green again then sprayed one more time and waited for at least 10 days then some until we had a good soaking of rain , through out my seed went over it with the weeder and bam i had a lush green turnip plot with turnips the size of sugar beets so there is my .02 the last 5 years has been a ton of food plot work on little food plots both by hand and with some equipment so if you have any questions, or want to learn from my failures dont hesitate to throw me a PM!