This is great, thank you all so much! I've ordered the tap, terminator, and more coax so we'll be all set as soon as they arrive.
We spoke with a local satellite business yesterday and he recommended connecting 2 coax cables to LNBF ports 1 and 2 then to the Solo Node but then running the host coax to the RV's satellite port and the client coax to the RV's cable port. The RV's AV distribution box would be set to "Satellite" for the Hopper TV and "Cable" for the Joey TV thus eliminating the need for a tap and terminator (as long as we're not wanting to also connect to cable at some point).
Since we're now officially full-time RVers and we have plenty of time on our hands, we're going to try it both ways to see which works best for us.
By the way, our missing channels mysteriously appeared overnight yesterday with no changes in our setup so we're both happy to have Velocity, AHC, H2, etc. back.
Thanks again so very much; we truly appreciate your knowledge and help!