One good access point could cover all that no prob.
[Link: radiolabs.com]Toss that in and call it a day. Anywhere on site. The picnic shelter. An Rv. Wherever.
Or go nuts with a
[Link: radiolabs.com],
[Link: radiolabs.com] , and
[Link: radiolabs.com]And have 5 bars of wifi for a 1/2 mile radius lol.
Or get two bullets, two omnis, screw together and have two seperate light sabers (cuz that's what they look like) with Led lights for when people are bored at camp and want to battle. Lol.
I've got a 5 acre site covered with the bullet and 15db Omni and no amp.
I'd like to try the amp for fun. The dude at radiolabs called it the "nuclear bomb of wifi". Lol. He was a good egg. That was a couple years ago. Wonder if he is still there. He was a character.
This looks like a good option. But my question is do you not have any problem with the range from your portable devices reaching back to the antenna? I assume it still needs a router. I could put the router and POE injector in a new work box on the D-Marc.