Are there any baseball card dealers? I’m looking at the pictures and I can’t find anything that shows them. Can someone tell me if there are any of them?

No they don't have any.

No I've never seen a specific vendor for trading cards but you could ask another vendor if they know of anyone

I haven't seen any specific tables set up with trading cards. But you may find a hidden gem.

I've been there a couple of times and walked through, never seen anyone specifically set up for selling rare cards. Though you might get lucky if you drop by and ask someone who sells baseball caps.