Im a handyman and farmer, i use many methods and only have a 25 hp tractor. But build roads and graded 2 acres with that little tractor. I always have people telling me what i cant do.
Hireing out is expensive cause the guys over charge!! Period i hire out as equipment operator and also with my tractor. At my rate after expenses including renting a trailer, i am putting 400+ in my pocket per day. And i charge less than half of the rate others do. Then there are the people that tell me thier neighbor did it for 50$. I dont work for free, and i dont over charge.
How i would approach your problem.
A disc will work, get one use it see how you like it and if it is getting your goals done. Using an implement takes experience. I have used discs, plows, rototillers, spike harrows, rippers, subsoilers, chisels plows. Each dose some thing, but your land and tractor, and goals are different. Strait up reseed i would,
Burn if possible,
Disc see if it is how i want,
Work with the tool on 1 acre,
Seed area,
Use a roller to press seed in and get better germination.
I have used a disc, then spike harrow, seed, spike harrow, roll and have gotten results. I use this method when i dont want to annihilate a pasture. Each year, 2 years in a row and had great pasture for my sheep.
Plowing compacts the soil at plow depth. So dose rototilling, and tilling or plowing rough, rocky soil with compaction is not easy. I dont suggest it unless you want to grow specific crops, pasture just isnt worth that kind of time.
Look for older tools around or see if a neighbor has 1 you can rent to see how it works. Im going to buy a disc, because i have customers that want me to do work. I used a 2 wheel tractor and a disc, and spike harrow to reseed 2.5 acres. Took time but i was very knowledgeable about every foot of that space. Too hire out, i need one for my tractor. Its a time on site deal with that.
For your acreage i would want a single tooth ripper or sub soiler, rotory disc 3pt or pull, drag or 3pt spike harrow, and a roller. This should get you started. Most of those implements can be used every year for some thing. Plan out how you will use the ripper/subsoiler, i did this across a slop and it spread the water out past my sprinklers 80'. Substantially increasing pasture growth, also used in an area with compaction which wasn't growing well. You couldn't tell where it was at after, before it was my bain as a brown short spot in the green field. I have also used the subsoiler to help waterlogged sections, and drainage. Get out and experiment, see what you like best for your goals. And don't let people tell you what you cant do. Those same people will say i dont understand. They give me funny looks every day, it warms my heart
Thanks
3HR