Prioritize: Skip where neighbors have put up a fence, do areas where neighbors will be most sensitive to your animals getting in their yard, Do one roll at a time down your priority list. Start with a T post pounder and puller. Woven wire and T posts then are easy to put up and take down where adjustments need to be made in the future. To prevent the wire from being absorbed into the trees nail scraps of wood to the tree which usually will be pushed out by the bark as the tree grows. Where there is woods on both sides use 4 foot fence and put it a foot or more off the ground, that will be enough to curtail wandering animals and people. Where barbed wire exists temporally put in a few T posts where it needs maintenance to reinforce that it is a maintained boundary.
In my area I see where rich people have hired contractors to put in a chain link fence only to have it engulfed by impenetrable brush so just a woven wire in that brush would be sufficient.