[quote=Mike Garcen]
2. MoCA which i love, i’m afraid is not an option, the back house is a totally different structure
[/quote]
So :).
Unless there is a MoCA filter installed b/w the main structure and yours MoCA should work (assuming that you’re not on different cable nodes (you shouldn’t be if it’s that close)). This is one of the big reasons why enabling encryption is so important if you use MoCA.