I don't understand the move from CB to FRS/GMRS when a ham radio costs $24.65 delivered from Amazon. Is everyone that afraid of taking a simple test that a 12 year old can pass?.
No, but my wife can't really, really can't be bothered to take the test. She's simply not interested, and the roll-eyes I got studying up to take the test were marvelous... . Anyways. She 'wheels her own truck. CB when in the truck, GMRS outside of the truck (and I hold the necessary license, although I'm having a hard time memorizing my GMRS call sign, for some reason...), and the 50W 2m radio in one of my trail trucks (and a 50W for 2m as well as 70cm in the other...) in case there's an emergency (good thing we haven't had to rely on that, but all the pertinent repeaters are programmed) - this may not be useful for anyone else, but it's working fine for us.
Typically, our trucks are line-of-sight when we're on a trail; main reason for that is that it is easier this way to arrange for spotting through obstacles. So, the 'lowly' CB works fine for that. And perhaps I haven't found the right 2m antenna that can take the same beating from brush and trees as the 3-foot Firestik CB antenna on the fender of my K5 Blazer. On the 80, there's the CB Firestik on the back corner, and the 1/4 wave on a mag mount on the roof if need be. I tried the mag-mount 1/2-wave 2m antenna on the roof of the K5 - not practical where I go 'wheeling, for the most part (same is true for a CB mag shorty on the roof; I can't count the times I scraped the one off, and yes, there are trees in AZ...). I'm somewhat tempted to try a Firestik 2m antenna on the other fender. But the repeater coverage is such that the 5W HT works for the most part.
Longest distance in flat-ish terrain where we were able to make contact using a GMRS channel at 5W was ~10 miles, CB in the same area was about 1.5 miles. In somewhat corrugated terrain, we were able to make contact over about a 2 mile distance using a GMRS channel, no signal at all using CB.
I'm not really advocating that what we're using is better than a plain HAM radio (it's not...); I'm just outlining a solution that has worked for us, and yes, I'm aware of what compliance the FCC expects from using GMRS channels. Can't please them all, all the time, I reckon.