Well, you know, at least you're knowing you're not knowing.
I would prefer a smaller game, myself. Like 7-10 players depending on the map. In fact, there's already ~20 names in the first post (hey, you missed arch!), so there would probably be enough interested players for two such medium sized games. I suggest seeing how many interested players there are Sunday night: if 14+, split the bunch in about half depending on map choices (Parganos seems the right size: is it good? Inland is great, anyway), otherwise go with the number there are. This way everyone gets into a game and it won't probably be too large for my palate, either
I wonder what's up with Chris... He's a great, reliable host (not to mention a highly entertaining opponent) and I'd highly prefer him hosting this. Hopefully he hasn't lost interest!