With that size of a new build I'd definitely recommended getting a couple quotes from pros in your area.
That said, we get asked these kinds of questions a lot. It's perfectly valid to avoid 'overkill' wire pulling. But what is overkill for one client may be just enough for another. Depends on what you want out of your system. Just remember, a majority of the cost for a Pre-wire is incurred just by getting the job planned and boots on the ground. The cost doesn't necessarily increase linearly, if that makes sense. When in doubt, wire for it!
Some other important (and often overlooked) things to consider early on:
- Hiring a company that provides thorough documentation (ask to see an example)
- Make sure everything gets run to a central location (electricians like to daisy chain, that's a no no)
- Plan for adequate space and cooling / ventilation for all equipment! This gets overlooked all the time!
Just my two (or three) cents