Best recommended 2RX/1TX locations on Expedition for Dragonland

Large SUV, Ford Expedition, in the Land of DragonEye and looking for optimum position locations for a 2RX 1TX front setup.
Picture attached:

Thanks

I have a 2013 and run them here. I am just now adding tx head. the previous set up has worked great and I am in a dragon eye playground.

http://i1018.photobucket.com/albums/...7F192B3096.jpg

http://i1018.photobucket.com/albums/...17656B03AD.jpg

http://i1018.photobucket.com/albums/...41BA14E368.jpg