If you are using a single satellite orbital location, such as only 61.5, then yes you can use a single feed to a switch next to your 2 receivers and then feed the 2 receivers.
But otherwise, the switch will need a cable/feed from each LNBF.
You may want to go ahead and install a DPP44 at the dish/LNBF's, then run two cables from the switch to your receivers. You can take one cable and connect it to a DPP Separator and feed both tuners on the 322, and then take the second cable to feed the single tuner on the 311.
Some may tell you that you can use a splitter on your current setup to feed two receivers. This may work, but only as long as both receivers are attempting to receive the same satellite location and same polarity, such as, 61.5 horizontal channels, or maybe 61.5 vertical channels, but not both.
EDIT: Is there a better way? Maybe... What type of dish/LNBF, and switch, are you currently using?
Also, out of curiosity, what is the issue with using a UHF PRO remote for TV2 output?
Never mind, I suspect you want to use a universal remote to control everything.