Hello Sam!
I'm the bloke who used to live over the road in Llithfaen...
As they said: gourmet food isn't essential. All-day breakfast and equivalents - bacon sarnie, sausage sarnie, hot dog, burger - is what it takes. Mustard is essential for some.
Tea and coffee, and cold fizzies for hot weather.
Cake and sticky buns are a nice add-on, but must be fresh.
If the caterers can offer that AND some upmarket food as well, that's excellent. But don't fall for the "posh lunches, so no all-day brekkie" trick.
See you on August 19th - I hope there'll be food for the Studes Fly-In!