They should fit fine. I thought the offset was -30mm but either way should be fine. The 5th gen OE wheels are -15mm IIRC. With that said the 18" Limited wheels will be tucked in a bit more. Upsizing the tires may get a little tricky unless you space them out a bit.
If it were me and I was set on the Limited wheels for a 5th gen I'd get a set of Spidertrax wheel spacers. That would move the wheels 'out' by about 16mm more than the OE rims. [That assumes: 1) The OE wheels are a -15mm offset. 2) The Limited wheels are -30mm offset. 4) You use 1.25" Spidertrax.]
My bet it those Limited rims would look great and there's some great tire options in the 18" size. If I had the money I'd be looking for some 18" rims to run the 255/70/18' or even the 265/70/18 if I lifted more aggressively than I did.
:cheers: