Mini Splits + Furnace + Ecobee + Pucks

I’m copying an email I sent to the support team without response. Hopefully, the crowd might have some advice. My house has a five-head minisplit system and a two-zone gas furnace. I would like to install two ecobee units where there are currently simple heating thermostats. One Ecobee would control heating/cooling downstairs, where there is one zone on the gas furnace and one head on the multi-zone heat pump system. The other ecobee would control the gas heating and 4 mini-splits upstairs (one in each bedroom). The mini-splits work fairly well for heating, even at low temperatures, but it would be great to have the gas furnace as an auxiliary system, especially downstairs, where there is a sunroom with a radiator that the mini-split head cannot reach. I understand the Puck Pro system may be helpful. It also appears that Flair sells rather attractive replacement wall plates for one-gang outlets that can be used to power the Pucks under their pro-only storefront. Please advise (i) if this system can be useful in establishing universal control of the mini-splits in each of the furnace zones through the ecobee and (ii) how to purchase the necessary components. Please note that I reside in Connecticut, where it does not appear there are current rebates for Flair Pucks, and I do not intend to seek rebates for this project.