A stock tracker with a rear tire on is around 13' long and about 6' wide mirror to mirror, so it would be a tight fit. I'm a large fan of the SJ series, but it does have it's limitations and for an all-round light duty trail rig I would build up a Tracker. More stock hp, more interior room and a softer ride.
The only issue is the tire size you are looking to run, 31" tires are about the max most people run in rigs that see a lot of road use due to the lack of gearing options.