a couple of other things you missed. when a tree has a hole in it big enough for a hive, the tree is already damaged. if you enlarge the hole, you further damage the tree. also, where are you going to get a queen? if you don't get the brood, you don't have the resources for the hive to make you.
you also don't have the equipment to do the trap out.
better that you learn all you can, collect your supplies, and start in the spring. if you don't want to buy a package, consider learning about swarm catching and do that in the spring. also, find a mentor or a club that can help you get started.
i understand the desire, but a good start is better than a fast start.
the other thing you could do now is see if there is someone around who could sell you a nuc. there is still time for that if you did it now.