Here's one for all the people that wanted another wacky interaction with the shady salesman!
He stands outside the Safari Zone selling his own Safari Balls. They act the same way, they're called the same thing, but they're looking a little off...hey, is that paint peeling off?
Anyway, this acts as a way to get Safari Balls outside of the Safari Zone, like in SwSh! Whether or not you wanna pretend that they're real, it's still neat that he's selling them to you for a good price.
This adds the Dubious Disc Salesman to Cinnabar Pokemon Centre. I chose this area because it's late in the game and it seemed a bit iffy to constantly have to go with Pokemon Centres not in towns. Cinnabar has some connection to Silph, so it makes more sense than just balancing.
There are probably improvements that could be made (eg. a quote as you buy) but the salesman code is surprisingly brittle so I'd rather not break stuff for hours for something that already works perfectly fine.