I'm Dairy free and Gluten Free and have had a great time at Disney World! They are so accommodating. I know it can be hard to make that transition to dairy free and finding things that you like, but once you get past the cravings (the first few weeks are the hardest) it will get easier. I've been GF/CF for about a year now and I still struggle, but you get through it.
I know that not having certain disney treats is hard (darn I miss those rice crispy treats of all things!), but there are many treats you can have. Itzakadoozie bars are dairy free and awesome! They sell those at most ice cream carts. There are also strawberry bars, etc. and I'm pretty sure those are dairy free too. (not sure on GF).
I've had amazing chocolatey desserts that are Gluten and dairy free at Crystal Palace (with Rice Dream ice cream).
Definitely email Brenda Bennett at special diets so you can get an idea of things available. Fill out the allergy form and contact restaurants if you need to. The chefs are all so accommodating and friendly. In fact, at Jiko I had a special menu made for my dietary restrictions!
As far as milk alternatives, for what it's worth, i like So Delicious Coconut Milk (found in the refrigerator section of your grocery store, or health food area) It's awesome. It's a little sweet, but not as sweet as you might think coconut milk is. It's the closest texture and taste to regular milk. The coconut milk ice cream is amazing. It's the same texture as regular milk ice cream. (Rice dream can be kind of more sorbet like..the texture is strange) Coconut milk doesn't have much of an after taste, unlike rice milk which I find has a significant after taste...yuck don't like eating cereal with it. It's great for baking, but not just plain (imo)....
Good luck! I hope you are able to find great things...at WDW I'm sure you will have success! They were great for me!
Let us know how it goes...
