ORIGINAL: Rhody Hunter

The area i hunt has a hugelone pine treee in the swamp and i know the deer are going in there and hanging out so i thought if i could get to the top of the tree i could look out all around and see the deer pretty good.
THe tree has plenty of branches to climb on like steps to the top. I want to put a stand up high with a rope coming down and use a pursic knot set up to safely climb up it . My question is how do i safely climb it the first time to get it set up? I usualy use a climber with a harness but this tree has to many branches for that.iwas trying to think of other ways to stay tethered to the tree. Any ideas would be helpful