New DirecTV design for my house (headless hr55 and MoCA)

Gen 1 design was 2 HRs into a Component Video matrix switch serving 3 zones. 11 years ago.

Now I'm thinking Headless HR55 server with 3 C61K clients on MoCA. (2 cents: DirecTV should price a headless HR since that is their new architecture). I have not been 100% happy with my experiments with RVU. Plus, I want to go Android TV OS, so I'm going with the C61K client solution for the video zones.

Do I understand in reading Stuart's reviews that the HR55 has DECA built in? Right now I have a DECA gen2 into my splitter. The reason I ask is I need another output on my splitter and I don't want to add the loss of another splitter in line or go to a larger splitter. If I upgrade my HR34 to HR55 now, can I dump the dedicate DECA. On my splitter now is a Power Inserter, HR34, HR24, and DECA. I need to add 2 C61Ks and remove the HR24.

I also want to add a Nomad box. Doesn't this have a DECA built in as well? But it still needs coax off the splitter, right?

Current config: Power Inserter, HR34 (server), HR24, and DECA

New config: Power Inserter, HR55 (headless), C61K, C61K, C61K, Nomad, DECA (??)

Any suggestions? Anyone see any problems with this?

Thanks for the help...