How can I sell at this venue?

You can get s fixed space at a monthly rate but I believe they also have monthly or quarterly sales where u can sell for just a weekend outside... but it's worth it to see how u'll do before u fully commit

There is an information desk inside swapmet

Google the location. You'll see a number to call for info

First talk to management to see if they have a spot available ,then watch how much people walk there !