I would take about a third of the property and keep it as a sanctuary. Never hunt, scout, or even step foot around the area during or around any deer hunting season. Deer (especially the smart ones AKA big bucks) have a very keen sense of knowing where they are safe. Should save some of the bucks from the neighbors. Also, While determining what piece of property you would do this to, I would make sure if benefits you and not the neighbors. And yeah It wouldnt kill ya to shoot a few does too. 50 deer using 70 acres is a lot, but I'm not sure I agree with the stack'em like cord wood plan, because you may see a lot of duplicates or just have a highly traveled area in excellent habitat.