According to the wheel offset calculator, a 17x8" rim with a +30mm offset will stick out an additional 26mm over the standard 17x7.5" rim with +50.8mm offset:
https://www.1010tires.com/Tools/Whee...et-Calculator#
So as per Clarky's photos, they should be pretty much perfectly in line with the guards.
On my Commander, 1.25" (32mm) wheel spacers put the standard wheels in line with the guards, which makes sense as Commanders came with 7mm less positive offset (i.e. 32-7 = 25mm).
I am about to fit 17x8" alloys with 0 offset, so I will end up with about 1" of wheel/tyre poke from the guard. Couldn't find any decent wheels with a 15-25mm positive offset that weren't hideously expensive, so I bought some secondhand wheels off a Wrangler owner.