Are you planning to do it single-handed or do you have a friend to help? It is much easier with two people. You need a pruning saw or a bow saw, a ladder, an axe and a rope.
Prop the ladder against the tree trunk and tie it securely to the tree. Climb the ladder to a decent height and begin to saw off all the side branches. Do as many of them as you can reach, moving the ladder if necessary, until you have the least amount of weight at the top of the tree that is possible. Cut a V shape in the highest point of the trunk on the side that you want the tree to fall. Move the ladder and cut the tree in a straight line on the other side. Let the top of the tree fall and saw it into bits to move it. Repeat the V cut and straight cut, moving down the trunk. Tie the rope to the trunk if you think there is a risk of it falling in the wrong direction. A friend at the other end of the rope can help to guide it down. When you have 4 feet of trunk left staning, stop cutting the trunk and start on the roots. The trunk acts as a lever and helps a lot to rock the roots loose.
Dig a channel round the tree, avout 3 or 4 feet away from the trunk. when you meet a root, cut it with the axe or saw it with the saw. Conifer roots are not deep. Use the trunk to help you find them by rocking it when you can.
The soil will be dry and impoverished and you will need to add a lot of manure and compost. Things will grow well on the site once that is done.
It is hard work but it is do-able and very rewarding.