Help at cardcon

Hii, is anyone going to Cardcon NL in Utrecht on Sunday?

I'm chronically ill have trouble sitting down and in constant pain and would love it if someone could help me out with talking to some vendors and trading some cards. Im trying to complete my Yu nagaba set. Just don't want to get scammed since it's my first card show 😅

Or any advice on which vendors are fair or how to negotiate/trade would be amazing. Thank you