Proper configuration of MT

I was wondering how to properly make configuration of the following situation.

  1. My main router is RB2011. I have a WAN port assigned to port ether10. All ports ether1 - ether2 are bridged to bridge1. I have CAPsMAN running on it as well and CAPs are also assigned to bridge1. IP address of bridge1: 10.10.10.1/24. On ether9 there was (I have now made some changes which will describe later) wAP connected running as CAP too, but this CAP is connected to bridge2 (192.168.83.1/24) and works as an AP for the other house.
  2. Because it happens sometimes, that I am encountering outages of the Internet from my ISP, I decided to replace wAP with BaseBox2 with LTE card on board. LTE is running fine, wlan1 on BaseBox2 is also running fine.

Now, I would like to use this BaseBox2 as a CAP for the other house + as a load balancing gateway (LTE).

I assume it will need configurating VLANs, but I am totally a greenhorn. Anyone would be so nice to help me?

OK, sorted it out.