I'd be good with later, too. We had snow flurries just yesterday morning here in York, if you can believe it. It's definitely a late spring here in southern PA.
I did forget about the fact that our church is dry!
If Cecilia isn't able to head this up, I will be happy to find a site in York county at a park pavilion, school, or not-so-dry church site. I've run a few large events and our annual church picnic back in WI, so it's old hat for me to put something like this together.
And yes, bringing a tomato you grew (or even picked up at a local farm stand) should be an entrance requirement.