Thanks for the help!
I picked up a leaf rake yesterday and got the junk off of the bottom, which was definitely a chore, lol.
Got the pump and filter up and running, and everything looks good there so far.

I also got a FAS-DPD kit and tested everything.

With the new kit, my readings are:
Chlorine - Free and total are both 0
PH - 7.8
TA - 70
Calcium Hardness - 20
CYA - 0