That's easy. Buy a replacement radiator and drive to San Jose with a 12 pack
Seriously, changing a radiator is easy. You need a radiator, coolant, and depending on the year, you may want to change the upper and lower radiator hoses at the same time. Parts wise you're probably looking in the $200 range for everything. That's a guess tho since I haven't priced out Jeep radiators.
Ohh and RUN LIKE HELL from Pepboys