I see the point about the PSS rim protector, looks like it's 5-6mm maybe.
But the MORR are aggressive, ET23 or close to that I think, and will stick out a bit on a F10 that's not dropped.
I've seen that the OEM 19" and 20" are almost flush on stock height, but when you drop the F10 is really cambers in a lot.
I remember that jaekeem had 20x8.5 ET14 inc. spacers and that didn't look like it was sticking out with the drop on coilovers.
BTW, I've seen pics of Michelin PSS 245/35/20 without K1 label here in Norway.
But then there's a new problem, those only has a Load Index of 91, and I believe the F10 at least need LI 93.
And from these pics, they look very much like the K1 speced too.
OEM 356 with 245/35/20 and 275/30/20 Michelin PSS