I’m looking for a very rugged handheld. I checked out the Yaesu VX-6R and some of the others that are supposed to be rugged but they weren't rugged enough. What I’m looking for is IPX8 water resistance and MIL STD 810 toughness. The only thing I’ve found this though is military and police radios. Could I buy something like a Motorola SRX2200, Tait TP9300, or Kenwood NX-5200 and use it as I would a Baofeng UV-5R? Or are these radios made only for groups with full-time administrators that can set them up? I realize they're way more expensive but let's not worry about that for now, please.