Use the search engine. Tons of threads about tires.
I run 29" Maxis Bighorns on my LE, although being an LE makes no difference as OEM clearance and offset dimensions are common to all 1000 5's.
Taller and wider than about a 29" x11 x 14 and you likely need lift and perhaps wheel spacers.
JMO, do a search.
Nice ride by the way.