Ideas? Taming Land In Town

I'm buying 2 lots adjacent to the 2 I own, and would like your critiques on my daunting project. Objectives:

1. Remove brush and vines from around trees
2. Smooth land: So kids can run on it without tripping on unevenness

Tools/equipment I'll have handy:

• Chainsaws, Pole ChainSaw
• Tractor w/ front bucket (borrowed, I've used it less than 5 times)
• Bush hog for tractor
• Box blade for tractor
• Riding lawn mower, Walk behind mower
• Matches

My current rough plan:

1. Bush hog: lower onto brush around trees, trying to avoid thick stumps
2. Chainsaw: Cut down thicker stuff
3. Scoot stuff to a burn pile (& coordinate with town fire department)
4. Pull down upper vines where possible
5. Cut down unwanted trees
6. Bush hog land as low as possible, scalping if necessary
7. Box blade: Give it some aggressive forward lean, and drag it around the land several times to loosen the soil (clay like) and start smoothing it out
8. Roll using water-filled roller behind lawn tractor (possibly?)

There's one notable thorn bush with super long thorns w/ barbs on them.