Tow Vehicle Preferences for more than 5K lbs

[McGillicuddy]

I need a different truck to pull the 21. I currently run a 5 speed manual, 2WD Toyota T100. It slides a bit pulling the Seafari up wet local ramps and has suspect stopping power in rush hour traffic.

The 21 rig is probably a bit over 5K lbs. Should I even consider a half ton or jump straight into a 3/4 ton. Local ramps are good and only about 15 miles away. The tow is all down hill & the return all uphill to 700 ft above sea level. I really doubt I'll be towing to Mex or any farther than San Clemente (about 70 miles) to go to Catalina Is.

I was hoping to go to an automatic transmission. And I'd love to find decent economy.

Any favorites out there? Thanks.