no you dont have to have the required gear but would be good to have it. the cb is how we all communicate. you can go buy a hand held cb for under $100 at northern tool (saw one today) and other places around town. i just recently got my cb and installed it. i would bring a tow strap but the trails that i have been on are not that bad that a good driver in a semi stock wrangler could do it. if you need i have a 48" highlifter jack that ill let you use and a tow strap.
***no you dont not need a CB***