Not sure what I need!

I have a tricky system and not sure what hardware I need, so am hoping someone can help!
I have a oil boiler that heats two buildings. I only want to ‘smart’ building 1. It is a Pressurised system with mega flow for the hot water. I have a three zone programmer that controls the rads, water, and the wet ufh in the main room. There are two wired thermostats in the building. One for the ufh and one for the rads.
The heating is all over the place and the thermostatic valves are poorly made. So I want to replace the 5 rads with tado valves. I want to replace the ufh stat with a wireless one as the current one was positioned above the pipe inlet so is always hotter than it should be.

Any advice? Thank you