Are Barbque pits sold here?

I'm sure you'll find a few different options especially now as were coming into warmer months!

Yes you can. There's not too many things you can't find at First Monday. If you can't find it there, they probably don't make it. LoL

At certain times they are sold there.

Yes. From time to time I have run across vendors who feature nicely made BBQ pits at Trade Days. It depends on when they are attending the function, though