Well I would be safe to say that I'm experienced (I do this all day, almost every day, all year long), I've done both on and off site Stage 1's and probably as many or more than most others here and probably against more standards...Like 9-14-18 at the same time for the same location for a multisite certification (top that) and here's the deal as I see it...
An off-site, though allowable under present AB/17021 rules/requirements just doesn't give you the warm fuzzy that sitting on location does...Folks throwing electronic documents at ya are doing nothing more that pumping sunshine up your backside with the expectation you'll warm up to them and hoping that before you show up they actually can do what they are telling you.
1 hr between Stage 1 & Stage 2? An AB may buy off on it, but not likely and I know of 1 CB that wouldn't even consider it...following the flow of this Thread we could probably add at least 2 other CB's that wouldn't either..
I find it pretty hard to imagine doing a Stage 1 and never, ever, since the sun started coming up has a Major/Serious nonconformity jumped up during a Stage 1....I've already had 2 this year alone...and guess what? They ain't gonna do no Stage 2 after recess during the 2nd hour.

That dog don't hunt...