Replacement RS Scanner Antenna

I have a PRO-508 that works fine but is missing the screw in antenna. Radio Shack redirects there parts to your local store which tells you they are not avaible. (Are they owned by sears?) lots of links point to them. Anyhow the Radio Shack Part Number is 10538353 (3 Section Whip) and the NP nimber is A0136. Scanner World used to stock many replacement antennas but is out of service due to health reasons. I have searched this forum and the Web with no luck. Sadly the antenna is worth more than the scanner but I would like to have the original since the aftermarket motorola antenna never stays upright.



Can someone point me in a direction to find this antenna? It was used in other scanners as well.



Thanks!