Yep, eventually it all came together without much difficulty. Off to the brakes now.

Any difficulty switching the device in and out?

Yup, I am waiting for the part to arrive. I learned there different versions depending on chassis, we'll see if I got the correct fit.

I am about to switch out the booster vacuum hose. Were you able to figure it out?

I was poking around (to see what was up with my brakes) and the valve was clearly busted. That said, the part is tucked away pretty well and it looked like accessing it was going to be a pain. Any advice?