Is it possible to get a picture from several fpv cameras to one point?

Question

Electronics

Hello.
At any given time, there are from ten cameras with signal amplifiers on a 100-square-kilometer test site. Control is not required, it is necessary to ensure the reception of a signal by the base from the cameras, in natural conditions. Of the unremovable obstacles, 50 percent or less of the territory is covered with forest.
Price - relatively important, cheaper than that if possible . Cameras move around the polygon, so narrowly directed antennas are not suitable. The critical point is the weight of the equipment, together with the camera - no more than 400-450 grams, because they are supposed to be used on a person (sportsman).
The delay is not critical.
The FPV has TBS Crossfire, with a receiving range of over 100km. Will it be suitable for forest/mountain use(1)?
Will the deployment of a mesh network help (if you install action cameras, then they have a wi-fi module, which will reduce the weight on the athlete) (2)?
What are the options for transmitting video from cameras(3)?

Answer 1

The answer of the Toaster level is yes, perhaps the topic is military, write in a personal.