Chris Green wrote:

I am investigating my options for getting the LAN to work as well as
poosible around our property.

If you've got "work" going on now, including rewiring etc, I'd bite the
bullet and lay in enough ethernet cable (cat5e/cat6 your choice) to do
it properly, I know Brian and co dislike powerline for interference
reasons, but the real reason to avoid it, is that it's never as fast, or
as reliable.