Stuck with a bit of a pickle here and wondering about what hardware options are available for my current problem. But first, let me explain whats happening and what I want to do before you suggest an answer
Current Prediciment
We have 5 customers in a rural area who have no access to DSL internet in their location. There isn't any alternative connection for them actually. The closest down, about 20 miles away has DSL available with a maximum data package of 5 mbps download and 1 mbps upload. The first customer, we will call them Customer A, can see the town, where-as the other 4 customers cannot, BUT they can see the first Customers house (Geographical limitations). They are using a Point-2-Point internet hop from the town to Customer A, then a different Point-2-Multipoint hop from Customer A to Customers B, C, D, and E. This leaves all of the customers sharing a single connection back in the original town. You can see the problem here already, if Customer E watches Netflix, goodbye data speeds to everyone else. Below is a current map of the network as it stands
► ISP Supplied internet AP in town (64.x.x.x)
► to router (192.168.1.1)
► to first inet hop AP (192.168.1.2) -> to SM (192.168.1.3)
► From SM to switch
► Switch to router at Customer A (192.168.1.4)
► Switch to second AP for Customers B,C,D,E (192.168.1.5)
► AP to Customer B (192.168.1.6)
► AP to Customer C (192.168.1.7)
► AP to Customer D (192.168.1.8)
► AP to Customer E (192.168.1.9)
Suggested Solution
Is there a managed switch or routing system I can put before the very first AP hop (replacing 192.168.1.1) that I can plug more then one ISP supplied internet into (Multiple WAN ports) that I can direct traffic from 192.168.1.4/7 too and 192.168.1.8/9 to the other modem? In essence, plug two 5 mbps links into it and shape it so that the customers can share it like a 10 mbps connection? I'd like to be able to plug in essence a modem for each customer in and then direct all their traffic to their own dedicated line if that makes sense that way they aren't sharing but since that't probably not possible and as far as I know you can't join two 5 mbps modems to make a single 10 mbps connection, I am wondering what options there are.
I was pointed towards this router here as a possibility:
https://mikrotik.com/product/RB750GL
I am unsure of if that is what I am looking for or not. This question isn't really about preference or brand, I don't care about that, I just want to know if what I am asking is possible and what type of equipment I will need to make it work. Thanks in advance.