Hi, very interesting WiFi project !
Your request is clear & very interesting for me.
I am one of the creators of 1°.net, wifi distributed tech based on the control of MAC addresses... sounds familiar ? ... :)
I can help for all this development for hardware, software and Netware aspects.
Based on my experience this can be easily achieved, we are talking of 10 years of experience in distributed wifi networks (long distance & SAT connected too) and 25 years of experience over large corporate network environments) including Hotels, Camping, Nautics, long range and very crowded close areas :)
Simply give me more details and we will overcome this challenge, reaching together the best solution needed.
Feel free to contact me for any clarification or question that can get the success of your goal
Cheers
Gianni