Depending on the package you went with and the location, you could have the Illuminations dessert party for $2200 including tax and gratuity. That is based on a viewing fee of $12.50 per person and a food/beverage cost of $20 per person. Then multiplied by 50 guests. I added another $100 and change to cover your Epcot guide/host.
I would choose the Illuminations party because you have more bang for your buck, so to speak. You and your guests have a private little area in the park to enjoy some goodies for about 45 minutes and the 15-minute show of music, lights, and fireworks. You have a better chance of getting memorable photos of you and your groom here as well, I would think. Though photos in the dark aren't that easy, any good professional photographer should be able to get at least a few nice shots to capture the moment. I would be worried about only getting one shot at getting the photo if you did private WP fireworks. I am not sure how many fireworks they set off, but I can assure you it is not many for that price - fireworks are VERY expensive. Also, if you did the private fireworks - would you have an evening ceremony?
As to your time line - we had a 2 pm WP ceremony, 3 pm cocktail hour, and 4 pm reception with dinner. A few minutes before 8 pm, our Epcot guide came for us and escorted us to Epcot. The buses can go backstage and pull up right behind the World Showcase. Then you enjoy your dessert party from 8:15 on. Okay, I just realized that IL may not be at 9pm when you have your wedding. But if it is at 9, it should be perfect timing!
Just try not to stuff your guests too silly at the reception, so that they'll still want to try a treat or two!
Feel free to PM me if you have specific questions for me.
