I also went for Unifi kit. My router is in my attic and I have two ubiquiti ap ac lites mounted in my ceiling, and an outdoor one, which fills in some dead spots at the back of the house. (The hole was already in the wall and we had scaffolding up.)
There are a couple of companies who can help with this type of stuff.
https://www.eniacsolutions.com/
https://www.opti-fi.co.uk/
I've not used either of them, so I'm letting you know about them rather than endorsing them.