I've had this Cobra 148GTL since new, it was built in 1991 in the Philippines. It has the side mic and was modified to access 26.815 to 27.995. My questions are: is this still a viable radio? If I need a mic I the future will I be able to find one? If it needed work, would it be worthwhile fixing it or would I be better off starting with a new one? There are probably more but I'll stop for now. Thanks.