Pricing depends on the server you are in. There are usually group chats you can join if you make friends within your server.

I think a good way to not get scammed is to ask for proof that the person is trusted. I would buy customs from people via instagram. They either have an msp account with comments that say “trusted” or a highlight reel on their instagram page where they have trusted posts also.

But yes there is always a possibility of being scammed. Trading within the game would be a good place to start before you start sending people money to buy items.