Oh my. Ok, I have some hard truths first time runner. You can't and shouldn't be trying to participate in a race on a knee
scooter or a boot. The reasoning being you are going to harm your hip, knee, and or possibly something else because it will completly jack up your gait. You will very much so regret the decision. That being said I highly doubt they will permit a device such as a knee scooter in starting corals. It is a danger for you and other runners. This is why in many races disabled runners who use assistive devices such as wheel chairs are typically in their own coral. Asssitive devices also in many races require a seperate registration denoting them as their times and awards are different in most races. I also don't think any doctor worth their salt is going to sign a note suggesting you run a race if you need a scooter or boot. Now the possibly positive news. If it wasn't a compound fracture, tape it, lift it, compress it, and rehab it. The race isn't til the end of the month. I wouldn't reccomend continuing training, which may kill your pace but you should be ok to walk if it wasn't a major break, especially if it was just a pinky toe. Tape it, KT wrap it, compression sock it and WALK for the races. You alone know your own limitations so you need to listen to your body. Try for a 1 mile walk 2-3 days prior to the 5k. If you can handle that. Start with the 5k then ice and compression after. Do not be wondering around the parks for 10 hours after the 5k (if you have pain) if you intend to still participate in the 10k. If you are flying you need to wear compression socks to keep swelling down. Talk to your podiatrist about what he thinks, listen to your body, then decide if you can do it. In most races you could seek a medical deferral unfortuantately RunDisney doesn't offer deferrals. My biggest peice of advice- if you can't rehab it in time- I know its dissappointing- but do not destroy your body to run these races.