You've got 16 a. of valuable hardwoods to cultivate and manage down there. The saw and PPE are a good start for firewood harvesting, but the hardwoods will have more value mapped out for harvesting both for firewood ( useless for anything BUT firewood) and other valuable trees for veneer, sawlogs, pulp, or other markets. There are many books on Forestry, managing a small woodlot, and marketing timber.
Get a Consulting Forester maybe at your university, to look over your woodlot, and give you a more scientific approach to harvesting. Get or make a contour topographic to plan trails for an ATV. While an ATV won't go "anywhere" , they pretty much cover ground that skidders and tractors cannot. We harvest our very rough 60 a. with an ATV and small trailer, getting 6-7 cords of firewood plus many cords of softwoods for pulp sale each year. We fell, buck, and trailer the butts out of the lot. Trail making is hard and fun, leaving the woodlot passable for running, walking, cutting, skiing, hunting. I save an old chain for cutting stumps to ground level; dangerous BTW. They need barely 4' wide path.
Working ATV's are used all over the world for fence management, herding, downhill ski grooming and cleanup. We have a Honda Foreman that's been hard used and trouble-free in all weather for 7 years...and it doesn't need to be fed, sheltered at night, or see a vet.
Used ones are not hard to get.
Good luck.
Oh yes, I forgot: even seasoned hardwood firewood is heavy. Pulling it out manually with the best wide wheeled cart wood (
) not be much fun. Save your body for felling, bucking, humping onto a trailer, spliting, stacking, burning.:hmm3grin2orange: