Creating Custom Climate from Smart Thermostat?

I’d like to keep my system in metric, but make the thermostat in imperial. All I can think of is creating a custom climate, but also a custom sensor template, which will read a custom ecobee temp sensor (also written in imperial). When I look at the climate docs I don’t see anything about the target sensor for temp readings. It always refers to the climate entity, but not making a custom climate template. Is this even possible? I do not want to use generic thermostat.

Nevermind on the question. Guess this isn’t possible. Also looks like custom temp units will be added for entities in 2022.4.