What to tell my electrician

I am building out a dedicated listening room in a house we just purchased. There is a dedicated 200 amp breaker box for a hot tub we are getting rid of. So, I will have this breaker box deducted for a listening room. Assume i have a rig with mono blocks (ss), multichannel amp (ss) ,pre/pro, universal disc, dac, large led tv, cable box, distributed audio/video controller (control 4). The room is in the basement not very far from the breaker box (running lines would not be a problem). Also, the walls will be opened for the renovation so adding outlets and running wire not an issue.

I have read many of the threads on the subject here and am often confused by conflicting info and partial advice

So, what I would like is for any friends out here to put yourself in my shoes and imagine you are telling the electrician (who from what I have read will typically be amused and a bit confused by the Audiophile focus and perhaps not the best source of advice) what to do. So, would be great if the post is you imagining you are speaking to the electrician and saying. "ok, here is what I want you to do ......"

Assume I want to do it right and legally (so no non code separate grounds).