How to bring A Plates (15706) in system?

[Flak Maniak]

So when looking at sets like Master Falls, and wondering how to best build larger stuff behind them... One intuitively thinks "Oh, I'll add another A Plate on each side and then we'll be at 90 degrees; it'll work fine!

But then you put two A Plates together in stud.io, and see... How horrifyingly offset the studs are when you try to join at the corner. And then with a little more experimentation... It's not even a half-stud offset per axis! It's some other demonic number!

"Okay, but maybe going 180 degrees will be fine..."

Nope.

"Well what if I connect the A Plates directly together, rather than putting a 2x4 on top of them..."

Extra no.

"Okay, well what if I put one down, and then the 2x4, and put the other 'backwards'; surely that'll work!"

Again, way out of system.

Am I missing something? Is there a reasonable way to integrate these into larger creations? Or are A Plate sections doomed to be forever disconnected from the rest of the model, always at a strange, partial-stud offset?

Is the best option to sort of "ignore" the angled portions, like in Tiger Widow Island, and put tiles to cover part of the A Plates, and then just... Build around those sections? So for example, with Master Falls, I would build all of my extra temple connected to the straight part, the main gate, not to the A Plate assemblies. Nothing would connect to them from the other side. Then, to integrate them, I'd just have some overlapping tiles or whatever. Is this really the best I can do?