With the stumps be extra careful not to turn with the drill in the ground. Maybe relief the disc downpressure on the unit a bit while you do it. If you do buy a drill, find one with options and aftermarket support with cutting disc selection.
I'm thinking broadcasting would do ok if your prescribed burn went well. Broadcast, then run the tractors tires in close close rows to act as a cultipacker. IF you can burn two years in a row, you'll be looking pretty good I think.
Brillion, woods and others have a more basic seeder that uses spike rollers. Might be worth trying that if you can use it. Not sure if they consider that a fluffing harrow instead of no till.
with this agreement, can you do any surface prep initally? A little scratchup with some C-tine harrows could go along way with both drill and broadcast. you can usually buy them for 3 or 400 bucks.
Speak of burning. Buy a few bags of charcoal and pick an area you want done a little bit better. Get a hoe and quickly scrape and extra inch or two around the base of the stump. Put a 1/4 bag on each stump and light them. Once the fire has calmed down, put any scrap metal on top of the stumps, like drum lids. These guys can burn for days. Im hesitant to add kerosene to the stump. I think the oil that doesn't burn preserves the wood from rotting.
With most burns, you build a fire break. It would be very irresponsible not to plant some quality forage in those areas.