I wanted to have the Tech use a 1000.4 Dish for the 61.5 & 72.7 & hook it to my DPP44 Switch where 110/119 also connects to, but he said that the DPP44 Switch or LNB's burn out over time.
According to several Tech in my area 'The 3 Dish solution is the only one".
We're in upstate NY and have used the 1000.4 and Dish500 with a DPP44 just like you described on a few installs and it works great. IMHO that's the best way to go up here, 110/119/61.5/72 because the 77 signal is very weak here too.