If for some reason you do end up buying this TH and try to tow it with your 3/4t, I suggest you at least make some improvements to it. I also do not advocate towing this, but hope you will at least see where I go with this advice.
Research which rear axle is used in your Dodge. You may find it is a 9000 lb model suspended on 6100 lb springs. If you have upper overload springs, you can run taller bump stops to the overloads in addition to an extra leaf spring to help support that pin weight without going to air bags. The rims and tires will probably be over their weight rating - Going to Load Range G or better 19.5" wheels will give you the capacity you need. Once you go to larger/heavier wheels, plan on upgrading the shocks to handle the additional unsuspended weight. Depending on where you source these items and whether you pay someone to install them expect to spend an additional $3000-4000 to make a bad situation slightly better.