what tires and shocks for 1990 sidekick 4x4 2dr

I just bought a 1990 suzuki side kick and my girlfriend wants to use for minimal daily use and I want to tow it behind my beaver diesel pusher and use it for all kinds of off roading and a get around car.
could anybody give me an idea what type and size tires I might want to buy and would I want to buy some kind of adjustable shocks to go with them. I am new to off roading and not mechanicly inclined. But I have had lots of motorcycles. what about a tow bar or car protector from the diesel pusher I am really cluless but totally!!!!!!!!! apreciative of any vete4ran advise any one could give angie and me. Baddd Bobby