Glad to hear they are still in operation and great find on eBay. I now know why you picked them up. The search continues.Yes, I still use a pair of BC-III's today for our VHF Low Band state patrol's backup system and another for some of the local VHF High railroad frequencies.
I loved the audio from those old radios!
I'd found the old unopened BC-III's on an eBay auction a long time ago. They had very cheap buy it now prices as well which I don't recall anymore but they were cheap. And they were perfect as one was VHF-LO and the other had both VHF boards installed in it from the factory.
I guess I could just pickup a telescopic antenna that would plug into the back external antenna connector. That would probably be easier to source but it just wouldn't have the look of the original.