The best place to start scoutting for turkeys in a unit like 51 is going to be in the creek bottoms. Look for their tracks but the problem there is that they are going to be there year round and not just in the spring. Also if you are a first time turkey hunter get youself a couple of tapes on calling them and practice calling which I believe will be your best chance to bag one.
Try to put your tree stand in a tree with plenty of background cover, keep the prevailing winds for that time of the year to your face, and take care of those pesky squeaks and creaks your stand may have developed while sitting in the shed. A good treestand lube can be made by heating petroleum jelly until it reaches a liquid form. Some hunters have reported success by including a cover scent in this mixture before applying it to their stands.