I tried replying to your last messages but it says your inbox is full.
In 1-3 you'll be the proud owner of an IK Foam Pro 12. Once I get the tracking number, most likely tomorrow, I'll send it your way and when you have room in your inbox I'll send you the receipt.
You'll want an attached air compressor. I find that once the pressure get's below 30 psi the foam isn't so foamy and constantly adding air is less than enjoyable. This is what I use and attached it via velcro straps. I even took one of the Velcro straps that came with some USB-C cables I ordered and made it the perfect size to fit over the sprayer handle and now I don't have to keep squeezing on the handle as I work my way around a vehicle. No carpal tunnel syndrome for me.
https://a.co/d/6xll7c0
I think I'm going to grab another compressor since they are cheaper than when I bought my first and get the Multi 12 and use it for rinseless washes.