You're trying to hold a "convention" inside a store? Am I not understanding something?
Being a Florida resident myself I cannot ignore this. Soon as I have some spare cash I'll throw in to the pot.
There is another section to the store where various events are held.
Appropriately called,"The Danger Room."
Is it like, big? Are they attached to a giant store house or something? Maybe take pics of it and put them up on the page. I think a lot of people are going to read it and do a 'wtf' like I did.
Still seems kind of small to me to call it an expo. Looks better than imagining just a store front though. Not sure what it would be called other than an expo, but expo gives the impression its going to be very large. Oh well, its neat that you want to organize an event like that either way.
Potential funders may be put off by the lack of details though. I didn't see any date, or guest list, whether it is one day or multiple, etc. The free admission sounds nice. If you could get a few recognisable names to be in on it that would go a long way. A local game studio, or known artist, something like that.
I'm glad your taking Uzo's advice to heart, as well as starting out relatively small-scale. Don't want another Dashcon.
Can't give anything now but moral support, but good luck with the convention.