Never received a reply on this....but
If any one is interested, the MoCA network worked fine. It's disabled by default so you need to configure the router settings to enable it. Once that's done, just connect the MoCA adapters to the same physical RG6 network and you are in business.
I used the Kiwee Broadband Bonded MoCA 2.0 Ethernet to Coax Adapters. Really happy with the results.