Micah,
Just a thought on the speaker wire - when I built my home HT my local shop 'sold' me a huge spool of speaker cable of hundreds of feet. I then installed whatever wire I needed off of the one large spool, then returned the unused length which they refunded. It took the guessing out of how much you will need to purchase. I don't know how long your runs are, but thought I'd mention it as an option if you can find a local shop that'll do that.

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1