I found good sheep fencing with electric strands worked fairly well with my herd of milking goats. Don't underestimate how much food they will need and remember their stomachs work better on high roughage diet which is why they get a rep for eating anything.....it is a search for roughage not a willingness to eat anything. Well kept goats with a good balanced goat diet actually are not too destructive.
They can and will climb over most things including fences that aren't hot. They will push under fencing and they will work hard to do so. They love being with people if they aare hand reared so they will attempt to come into the house if at all possible.
They need their feet trimmed a few times a year and a good worming program.
The boys are stinky, really stinky, so unless you are planning to breed have them cut prior to getting them. Two girls should be perfectly happy together however.
Chook feed can cause bloat in goats. This can kill them. Be careful about grain type feeds. Even though they have an "eat anything" reputation they are just as delicate as the next animal if fed the wring thing.
Good luck.