- IASW Holiday could kill the effort all by itself: 30-minute wait and a 13-minute ride - you need to be getting through 3 rides in that amount of time! To make up for it, you'd have to get through 3 rides in under 20 minutes. That might be possible in Fantasyland just before closing, but still really tough.
- Peter Pan, Dumbo, Gadget's Go-Coaster, Nemo, etc. are all going to be killers
Being alone is helpful because you can move quickly and hit all the single-rider lines, but what you really need are some assistants in each park who can be collecting Fastpasses for you so you don't have to use up precious time just going to grab FPs.