No, Radios are not Cheap to buy, but rental from Road Radios and others is actually very reasonable. Your situation sound pretty manageable given the scope of your description. There are some cheap radios that are better than FRS. Boafeng makes 400-500mhz range radios that are actually not bad. I wouldn't put them in to service full time, but for occasional use the come in hand.
And to the original poster, there are radio to clearcom adapters. you could use use clear com to communicate to those with radios, but I think It uses the signal(strobe beep) in the clear com to press the transmit button, so you can easily tie up radio communication if using clear-com a lot. This also does not help you at all if you don't already use clearcom.
And to the original poster, there are radio to clearcom adapters. you could use use clear com to communicate to those with radios, but I think It uses the signal(strobe beep) in the clear com to press the transmit button, so you can easily tie up radio communication if using clear-com a lot. This also does not help you at all if you don't already use clearcom.