First thing is first, DO NOT use a dolly. get a trailer from u-haul. you will probably need it anyway since the 4runner ways to much.
I wouldnt tow it. a lot of pressure on your jeep. I doubt you have a class 3 hitch put on it. you will need a drop bar with ball that can hold up to 10,000 #'s. your shocks arent that stiff so your front end will be up in the air which is not safe at all since you will loose braking power and your steering will be horrible.