Got my K2006 kit in the mail, here are the results:
FC: 2.8 (I just added 2 more gallons of bleach after testing this)
CC: 0.4
pH: 7.2
TA: 200
Calcium: 450
CYN: 200 (probably a bit more, it was just a little under the 100 mark)

Polyquat should be here tomorrow. Not sure how I decide if I still need it. Water is clear. We haven't backwashed since vacuuming what had settled out yesterday but pressure is fine. We plan to start brushing tomorrow.