CB Radios

So my father was recently given my grandfather's '93 goldwing (Grandpa is getting old and can't really ride anymore) which has a CB radio built into it, along with an intercom system and other fancy things. My dad already has a bike (smaller honda touring bike) and wants to go on a trip or two with me.

I'm wondering if there is a decent aftermarket CB radio that we can connect to the second bike so that we can talk to each other. Ideally it would have a handlebar-mounted control of some sort. Thanks.