about $200 for a new front or rear. A guy here on the forum was just selling his rear bumper for $100.
Check some of the shops in your area that specialize in jeeps. They may have some take off bumpers for sale. Don't know where in Fl you are, but check fortec.com in Palm beach they claim to sell take off parts cheap.
I sold my front bumper on Craigs list for 40 bucks last year so check there and e bay.