I cleared the furniture out and pushed anything left over in the center and covered it with drop cloths. I taped off the bottom and top of all four walls as well as the doorway, closet and around the window. I then spackled out all of the holes in the walls with $2 plaster. I had tons of reference material from childrens books to interenet images and I had photos from the ride at Disneyland too.
Masking tape is my freind! I used it quite a bit but as far as everything else most of the paint I got was $1-$5 oops paints fromt the home depot! With a enough primary and basic colors you can mix your own pallette with whatever you need. Regular spraypaint was used for the gradient sky, clouds and mountain mist. I threw a towel on the the doorway, wore my resperator and painted when nobody was home