PRC-127
Nothing but a UHF Bendix King, parts are easy, repair is easy, accessories are easy, programming software (if you don't want to use/have the keyboard) is easy (unlike Motorola they don't care about the software). Software for changing to ham band called hamandeggs is easy to get. A lot of them can be upgraded to have more channels/banks just with the software (others require changing the memory chip). Forestry service uses newer versions (common accessories) for firefighting so they show up used on a regular basis. They can be had with all metal cases and intrinsically safe (for explosive environments). They are NOT lightweight but they are dam near impossible to kill. I own several in UHF and VHF.