You need a travler or equivalent full dish , no domes, to use a hopper.
The wally can easily have a limited dvr ..( one Chanel at a time ) you just add a portable computer hard drive via usb cord to the wally and pay a one time 40$ fee to activate dvr use on all wally tuners on the account. If you do have a travler antenna the wally will have two tuners and record two or watch one record one
Technically you can’t have a hopper in a rv unless you own the hopper , no “free” receiver with contract deal. You need to buy it outright from someone. The hoppers hard drive has a reputation of failing bouncing around in rv’s They won’t cover its breaking. If you do use one be sure to unplug it before moving the rv.
Two hoppers on a single account aren’t supposed to happen but it seems that doesn’t mater if you activate your own hopper ( see above ) .
Bill