Newbie question. HA, Logitech Harmony, RM Pro and i Lumos wall dimmers- best approach?

Hi all, this is my first post here so please be gentle! I’m brand new to HA, having installed Hass.io on a Pi 3B+ a few days ago after finding it while trying to get my Logitech Harmony to talk to my iLumoS wall dimmers. I’ve since spent quite a bit of time researching and experimenting with it. I love it but I’m stumped and am looking for some pointers, please.

Objective: - to get my Harmony remote and HA to control the i LumoS wall dimmers (and as a bonus, some 433MHz switches)

Kit:- I have the following equipment

  • the Pi with Hass.io
  • a Logitech Harmony Elite (remote + hub)
  • a Phillips Hue hub and bulbs
  • an original Broadlink RM Pro (not the plus or later models but it is RF and IR)
  • a number of iLumoS 433MHz wall dimmers
  • a number of 433MHz switches

Status:

  • the RM Pro controls the i Lumos lights from the app
  • the Harmony controls the AV equipment and Hue lights from the app or remote
  • HA controls the Hue lights and AV equipment through the Harmony hub
  • I have a number of other 433MHz switches that I’d like to control from HA (I’ve tested them and the RM Pro can control them but they are not currently configured)

Challenge: - What is the best way to link the i LumoS dimmers and 433MHz switches to the Harmony remote and HA? I’m confused by the number of apparent choices:

  • use the Pi with a 433MHz TX to send code direct to the i LumoS dimmers
  • link the Harmony and RM Pro in some way, either directly or via HA
  • buy another hub of some type

What do you recommend, please, and why?

Hi, no, I ended up scrapping them and replacing them with Hue bulbs and 12V LED strips based on a circuit I designed using the Ikea Tradfri bulb boards. Works well.