Hybrid LNBFs are retro compatible with DPP technology, so any DP/DPP compliant receiver will work fine on one. Whoever said that they will stop working is wrong, unless a new Hybrid LNB model gets released. I have gone as far back as connecting a 322 to a Hybrid LNB with zero issues.
After all the great help and answers to my questions in this thread, Dish does not have any Wallys in stock so I'm going with a Hopper-Joey configuration. But I really appreciate those that helped me. Thank you.