Are the vendors there open to buying antiques on the spot?

Yes

Vendors are interested in purchasing vintage and estate items. You can talk with them on site and arrange purchase off site.

Vendors are often interested in buying vintage and estate items. Arrangements can be made to purchase off site.

You you have to rent a booth.

Yes but understand lots of vendors only go to the shop weekly.

Yes if the vendors are there

I THINK THEY SELL MORE THAN BUY, BUT I WOULD CALL AND ASK OR JUST DROP IN ONE DAY ?????