I guess my question would be why do you want a CB.. in their day they did a good job but now with the new vhf hand held units, you can double your coverage and get away from all the noise and skip on CB and you won't have to install any antenna outside. I ditched my cb unit a number of years ago and havn't missed it for a day. When I travel with friends we use the vhf hand held units. If you do persue the cb route the most important part of the install is the antenna. As the mh is all fiberglass you definitley need a marine type antenna because there is no metal for the signal to bounce off of, in other words no ground plane. You must also make sure you match the antenna to the radio with the use of an SWR meter. The ideal match is a 1 to 1 ratio..anything higher than 3 to 1 ratio will almost nulify any radiation of signal, in other words you will not be getting out. Some say they use the cb to talk and listen to truckers.. All I ever got on the CB from them was to ::get the hell out of my way::
I hope you have better experiances. Good Luck.