First of all, a big thanks to Outbakk from the Terror Drome for providing this link. This is a link to a Target product finder, which auto-fills the Skystriker DCPI. All you need to do is enter your zip code or city/state and it will search neighboring Target stores and let you know which ones have it in stock.
For the record, I’m 0 for 12. :/
Check it out right here, and please let me know if it works for you. It definitely generates a result for me, but I have no idea how accurate it is. For the record, the DCPI for the Skystriker is 087-06-1686.