I've read up on the art guidelines. I'll be needing 25 people and a 75 foot radius. Through emailing with ARTery, they don't like the idea of neon or plastic being burned. There will obviously be some cleanup, as I am going to have to use a lot of decomposed granite and removal of all the ash remainder of all that is burned. I like the idea of UV paint / UV lights but they also don't like the idea of burning paint (nor do I like the idea of burning neon, plastic or paint). It looks as though I'll be compromising from my original idea and going to something simple and cheap such as light ribbon on, coupled my one of my gaffer tricks (flicker box) with a trap door to a power source to provide an interesting aesthetic at night, remove it before it burns and do something like the long burning flares you suggested to keep it lit up before it burns.
Thanks for all the input all, much appreciated.
Will be finalizing quotes from vendors for the more expensive pieces of my project in the coming week and then submitting my project! Wish me luck!