Here is the strap I purchased at Home Depot:
https://www.homedepot.com/p/Keeper-O...5268/207118285
These are similar to the D Rings I purchased but I'm fairly certain mine are stainless steel:
https://www.homedepot.com/p/Keeper-1...9311/205510053
I won't be able to post pics in the basement for about a week since I don't have access to the rig right now. Basically, I installed the D-Rings on the bottom of one of the aluminum floor joists in the ceiling of the basement. I put 2 close to the front of the basement and 2 close to the rear so that I could put our 2 rubbermaid totes in between.