A 275/35/18 is way doable. These are 18x9s with 6.5" bs and plain ole 73+ 11.75 discs. A 1/4" spacer would work if needed but I plan to add 14" Mr Diff brakes and I believe they move you out 1/4" anyway so its cool.
that looks great. i wish i would have went with the 18's early on,but when i jumped in early on this thread nobody was running them . now i have a set of 17's for street and one for track,so i can't justify buying all over again. you need to bring that thing out to one of the American Streetcar Series runs. i am usually the only mopar other than when i go to jersey this year.