Hi-I'm new to all this and with Black Friday here-is Midland Radio a good place to buy one or Amazon? Also I'm hoping to join a trip here in a couple weeks and I see a GMRS channel that's going to be used so guessing that type of rail would be good to take. Are these different than the Motorola ones you buy like at Costco? Can anyone recommend a good set? Hoping to use with others on trips or give to my son when we go someplace and stay connected when no cell service-thanks.