Festivals that will last 7 hours with 10-14 DJs? The common point this has with lebanese parkings is that 60 cars enter a closed space that can have a maximum of 50 cars.
Here closed space = 7 hours and 60 cars = 12 DJs (like this last Saturday). For this amount of time only 4-5 DJs can play so that their sets can be long enough (but not too long). Giving 45 minutes to Cosmic Gate and John OO Fleming is kind of dissing them.
Anyway, hopefully maybe you'll be the first to learn from mistakes. I dunno if someone before you learned. Change the name first, it wasn't a festival this last Saturday, just a usual event. For example, Forestronika in the summer was a festival.
For now Lebanon doesn't deserve real big festivals. The scene is too fragile (no EDM foundations) and dirty (for the reasons you mentioned). Maybe in 10-15 years it will deserve. Good luck with that honestly