Looking for outer barrel for a CA M24

[Cyclops]

I'm having trouble finding the outer barrel to a Classic Army M24. I'm having issues with stripped screws and figure it's time to replace the whole barrel. I bought this used and now I'm starting to upgrade things I can hopefully fix. Would you buy any chance of know where I could look? I've been looking up on google but now I'm tired of seeing the same things not related to the M24. Figure this would be my next step. Really I just want to upgrade EVERY thing but start off with basic stuff then move to the spring area and inner barrel.

[Reaver]

We just need to modify to a larger set screw. With parts so obscure that's about all we can do. Downfall of a used gun I guess.