Moca Network, minis, OTA etc

Hi, a few questions as I know very little about Minis and Moca networks.

First of all am considering setting up a Moca network at a relatives place. Right now they have cable, a Roamio 4 tuner and a Bolt 500GB. I know the Bolt could be used to create a Moca network but only if in the room with the router, it is not, don't have a TV in the router room at all. And the internet itself is not cable, it is DSL. So here is what I am considering. First I guess I would need a Moca "adapter"? Hook...

Moca Network, minis, OTA etc

Moca Network, minis, OTA etc