Steve,
Looks like you nailed it. I typically install the Glide Harness Adapter on the diver's right, but it will work fine on either side. I like to put my left arm into the harness first (because that's where my Drysuit Exhaust Valve is), and then my right arm, but it will work on either side. Putting it on the left makes the left hip dring a useful max opening travel limit.
I would suggest you wait a bit before installing the 1/4 x 20 Button head and nut we furnish as a "min" travel limit. Installing it requires burning a hole in the webbing, and you will likely discover you want to tweek your harness adjustment a couple times as you start to use the gear. There is no requirement to install the limit, but it is a handy way to know you have pulled your harness to the same spot.
Nice pictures, thanks,
Tobin