Another vote for SDR, as long as you're somewhat computer-savvy. Suggest RTL2832-based SDR (NESDR or rtl-sdr.com), SDRSharp, DSD+ Fastlane, SDRTrunk, Unitrunker. You'll want one SDR for control channel and one for every 1.9 MHz you need to cover simultaneously. That's a total of either 3 or 4 SDR for the freqs shown above, depending on whether the upper channels marked as control-capable actually get used for traffic otherwise.