Forget the manufactured for amateur radio junk and find yourself a
surplus Motorola radio.....model and frequencies of course will depend
on the basic RF performance you require. Of course everyone will have
their own testimonials but I've personally seen, for example, HT1000
portables (in their leather holster) accidently dropped 20 feet onto
steel decks and a Radius portable that was left on the hood of a truck
and flew off at over 40 mph bouncing off the pavement - both of which
were picked up and were in GOOD working condition (first was unscathed,
second one needed a knob and the case was cracked).

73 - Gord VE1AJF