Hi Patrice!
Thank you for bringing your question to the Disney Parks Moms Panel!
Generally, the corral placements will be published about two or three weeks prior to your event. Participants will receive an email and it will also be on your event page of the
runDisney website, under the RUNNER INFO tab.
As for the pre-order items, runDisney usually only has photos of the special Dooney and Bourke purses that will be available for pre-order. The purses are usually revealed about a month before the race weekend. Please note that purses may not be available for each race.
There are actually two Star Wars Half Marathon weekends, one at Walt Disney World and one at Disneyland. Since I am not sure which one you are participating in, I can't make a specific restaurant suggestion, but I do recommend finding a pasta-type place to eat. Stay away from spicy foods and don't try anything new right before a race. Save your birthday celebration meal until after you cross that finish line! If you will send me which race you are attending, I can help with more restaurant details and suggestions.
I hope this helps! Please let me know if you have any other questions.