Make sure you buy a structured media enclosure that is all plastic so that it’s transparent to wireless signals. I bought the Leviton 49605-42P. Works great.

3 years ago I paid $100 per drop for Ethernet from a certified electrician. Now, he was here to replace my panel, add some circuits, and the Ethernet, so I’m not sure if the $100/drop fee was discounted in some way based on the total size of the job, but it seemed very reasonable to me.