In fact, you can add a location to your profile. I believe @aart has a quick guide he can paste.Sure I didn’t know if giving location was allowed. I’m in Eugene Oregon
Sorry you aren’t having any luck with rehoming him. Stick with and hopefully you’ll find someone. I have heard, oddly, that if you charge a small fee you may have better luck… Maybe that’s an indication you aren’t a scammer.
Only research I’ve done on neutering cockerels is caponizing, for food. You wouldn’t want to use estrogen tabs if you plan on eating, which you said you aren’t.
Hoping you quickly get a resolution to this.