Hi David!
Thank you for bringing your question to the Disney Parks Moms Panel!
I think it's very sweet of you to be doing this for your wife. If running is a passion of hers, I am sure she would love a runDisney race.
The best way to find out if any travel providers have bibs left is to contact them individually. You can find a list on the
Star Wars Half Marathon- The Dark Side website. If you click on the "REGISTRATION" tab, and then the "Travel Providers" tab, there is a list with contact information for travel groups.
If this doesn't work out for you, the
Wine and Dine Half Marathon weekend will be going on sale very soon (March 15th). The 5K races sell out quickly, so I suggest being ready to register the day that it goes on sale.
I hope this helps! Good luck with your quest and please let me know if I can help further.