I don't think you have to worry about the OP climbing any trees with a chainsaw
And don't waste money on stump grinding.
1. Leave a flat stump about 2 ft high (but level)
2. Cut at least 4 slots in it like a Swedish fire torch (should have at least 8 "pie slices").
3. Build a fire on top of the stump
It will burn the stump in a few days. It will continue burning underground for a week, eliminating roots and all.
You'll be left with a hole in the ground to fill with dirt and sod over.