Thanks for the help.
Got another "stupid question". I've assumed that when I turn vertical and penetrate the belly pan w/ the "final run" of tubing to each appliance, that I would use a 90 degree elbow fitting and then go all the way to the appliance connection point. Now that I'm about ready to install, I'm thinking, "if the rule is no fittings in enclosed places - like the belly pan - then how do you justify the end of the elbow with a flare nut sticking in the belly pan . . .
So I started thinking, I better check in w/ the experts (again, I'm starting from scratch so I don't have anything to look at).
Aluminumbskull with Led Balloon in Drag
Birch Plywood and Aluminum go together like
Peanut Butter and Chocolate