Hey Stomper, are you still in Kuna? Iam, King/Luker area, was just looking at my factory rack a couple weeks ago and thinking about mounts much like yours, then got sidelined with a water pump/radiator replacment. Would love to check out your brackets in person.
I used to use Tony Chacheres on everything, but it has been replaced with Cabeles Mountain Man Bourbon, limit me to one bottle and that will be the one!
Pop up are not a lot of set up, my last one, like this, http://www.holidayrv.net/New-Inventory-2015-Flagstaff-Tent-Trailer-BR23SC-Poncha-Springs-Colorado-862305 Was 5 minutes up and 10 down with a slide out. The off road versions are by no means fragile either, i slept in mine over 150 nights...