You'll love the ride from the Ferry, it's one of the best "free" things you can do, and very relaxing!! Just wanted you to know the timing. Is there a reason you want to go to Via Napoli on that night in particular? Will that be your only EPCOT day. Oh, also, there is face painting at EPCOT, if you're interested in something like that for your kids costumes.
Well, F&W is a priority for our other EPCOT day and I'm afraid my kids won't last a full day in the park in order to have dinner there, not to mention that the thought of eating a full meal after all of that snacking makes me feel ill! I'll play with it and work on my time management.
Thanks for your help!

I don't have a real plan yet other than dinner.
So keep this info in mind when planning so you don't miss out on something special before the party starts, and you lose your chance to see someone you wanted to see.