Spent the morning repacking the bearings on the trailer.
Then mounted the spacers/bolt pattern adapters on the existing axle so it will match my 2014 Cherokee.
Finally, I mounted the new wheels and tires. I purchased the MB Icon wheels at 17x7.5 and a pair of Good Year Wrangler All-Terrain Adventure tires from Discount Tire. I can use the wheels/tires as spares on my Cherokee if necessary. Plus the spare from my Cherokee will fit the trailer now.