I can never get KSG on thinly enough when I apply it by PC, I do far better applying that product by hand (note that I apply most *everything* else by machine, even paste waxes).
I dunno about doing a whole vehicle with one ouce of AIO, I'm not that particular about how much AIO I use and IMO it'll depend on how much cleaning you need it to do. Still, one ounce sounds about right.
I like to use pads that are a bit more porous than the Meg's 9006 when working with AIO, but that's just me.
No real point in "working" the KSG, all you need to do is get it on the panels.
I use *far* less than one ounce of KSG to do our minivan, not even close to that much- my bottle of SG is a good five years old, I've applied many coats to many vehicles, and it's still over half-full. It's hard to express how little you need...think of it as bonding at the molecular level and remember that 99% of what you apply gets buffed off. I apply it so thinly that I can't really see it on the paint (I go by feel and work systematically to avoid missing any areas). The thinner you apply SG the easier it'll buff off and the less chance you'll have any problems (streaking, "blooming" a few days later, etc.).
Let it cure for ~24 hours and add another layer. I shoot for four to six layers but you can always just add another one after each of the next few regular washes.
Even if NXT isn't the most durable product in the world, I never find Dawn to be very good at stripping LSPs, but the AIO will clean it off anyhow.
) yet it's not even half-way used up.