site-to-site mesh backhaul with spoking sub mesh, and link bonding to internet.

Baiscally I am just wondering on the validity of this being possible.

If I say, have four neighborhoods in corners of a small city, that have their own small mesh networks, is it possible to plug in a long range radio and have all of them pipe together?

The other part, is link bonding withing the mesh. Each person with a mesh AP plugs their internet connection into the mesh network via that AP, is it possible to link bond within the small mesh, then run it out of the back haul stated before,between all of the smaller meshes?

I know this is an extremely long shot. I just wanted to satisfy my pedantic mind by getting an answer either way.