now I know that this is a kinda ridiculous idea but I think it would be quite cool and highly possible, what if each player gets a plot and they can create a breeding place for their Pokemon, what do you think?
I don't think the plots will fit with the theme "an adventure to be the very best, like no one ever was". Building in your plot isn't that adventurous. But breeding might be a cool idea and there was a really good post in detailed.
Tbh instead of plots, it should be pre-created houses/villiages (simple solution). Breeding would be pretty cool, you should explain it in further detail