Best thing to do is ask if anyone here is going that way that has a tow rig. It will be pretty expensive if you have a company do it, ie a towing company or that sort of thing. If it will drive, a plane ticket up there might be cheaper. Good Luck.
I'm heading to PA in a week or so, it's possible I could pick it up and tow it back, depending on where in NJ it is... PM me with more info if you wish.
I've had two trucks sold to guys that flew in and drove the AZ. One on unbalanced bias Swampers.
It all depends on the condition of the Jeep and whether it really is driveable for the distance. I drove the Mog from the VA port only to have it crap out on I85 in Durham during rush hour.