I am going to state this yet again. No one is going to ship you 30-50 guinea pigs.
Starting a shelter is not as easy as you may think.
Also in the other thread you stated you wanted to know why it's not ok to breed pigs. How do we know that if someone foolish enough were to ship you pigs that you wouldn't breed them to create more. Sounds more to me like you want to get into a
cavy mill business rather than run a shelter.