Can this two 722K (6 TV) setup with mirrored TV2 upgrade to Hopper3?

Had our (really) old 722 die on us, and the tech came and replaced it with a 722K. We already have another 722K elsewhere in our house. I talked to the tech about what it would take to configure everything up for a Hopper3 system, but he seemed a bit lost when I talked about wiring, and had no insight into if there was an option for one of the mirrored TVs to be mirrored off of a Joey (small, old CRT TV in a guest bedroom that sees maybe an hour of TV time in a year, so not worth the monthly fee).

Anyway, if we drop that one mirrored TV out of the mix, and split another TV1 mirror to be separate Joeys, would our current wiring in the house work? Tech said that we had great signal strength, but the previous owner of this house didn't do home runs of cables to a central location, and I am not 100% sure that I've been able to map out everything, but I've attached a basic diagram of what I could find and or figure out. The kicker is just a single RG6 line comes in to the house, and most things I've seen in diagrams are 2-3 RG6.

Is this a possibility or a lost cause without some serious re-cabling of the house. Basement is totally finished, but there is some access to one of the receivers directly through the attic and down a wall (already has a hle and conduit in it for speaker wires), but the setup in the basement would be a bit trickier... Not impossible, but trickier...


Current setup with desire for a single Hopper3 and 4 Joeys
Thanks for any thoughts on this.

So splitters/diplexers/triplexers are fine in the mix if it gets them a connection to the right spots (where the TVs are)? Sorry for what it a super simple/silly question for most of you experts.

Yeah, we only mirrored when we had a spot where a TV would RARELY be used, but was nice to have. Like the guest bedroom that gets used back 3-4 nights a year, and even then, the TV would be used hardly ever. Seemed silly to pay for a TV location to have its own channel capability when it is so seldom used. Even at $7 each month for the joey, that is $84 a year for someone to watch maybe an hour of TV. That is pretty expensive for that one hour. We are thus dropping that one from the mix, and for the other area where one of the mirrored TVs is used maybe 20 hours a year and its mirror about 100, we will just spit those. It is worth the $4.2 an hour for the lower usage one for the convenience.