I need a 30 gallon or steel or aluminum pot can be bigger.

[Bulldog Man]

I got about a 15 to 20 gal pot you can have it if you want it from a large deep fryer

 

[Eggmanmja01]

https://www.theoutdoorstrader.com/threads/fs-outdoor-gourmet-pot.2320845/

 

[rockyfatcat]

try the asian markets. i have seen HUGE pots there

 

[bulletpaluza]

Have you checked into the chicken plucker that attaches to a cordless drill goes in between two plastic barrels no water it does all the work I don't know how to upload stuff off the internet but I'm sure if you Google it will come up

I am pretty sure even those require a hot soak to help loosen feathers.