On Facebook they have a site called "poultry swaps in Louisiana". You can post on this site to rehome him. The site says it's based out of baton rouge.
If you want to make your own spray here's a site with a recipe for you. https://www.greenwillowhomestead.com/blog/diy-recipe-poultry-protector-spray-to-protect-your-hens-from-lice-and-mites
Also make sure you treat the temporary housing. If the area is big enough create a sand/DE bath for him.
I don't know what state you live in but I was able to find a rehoming site on Facebook for my state. I was able to re-home 2 of my extra roos through it. Maybe look to see if they has a rehoming site for your state?