Towing a 5er while understanding weight issues.

Reading all the numbers I wouldn't rule it out right away for towing. The only thing I would caution you on is trying to navigate really steep grades. You are going to find yourself jumping on the brakes coming down out of steep mountain passes and you will chew through brakes and possibly even have some brake fade if the run is long enough or steep enough.

You can get by in the flats and hills, I just would stay away from mountains.