Hi Julia!
Oyster Blue Pearl, like Ringo's Oyster Black Pearl, can be very expensive when it comes to snare drums! Granted, a 6-lug Pioneer won't be as expensive as an 8-lug Jazz Festival, but it will still set you back quite a bit! I did a quick check on eBay and found some Oyster Blue snare drums, Jazz Festival, and the pricing is sky high! It's the same seller all the time and the drums never sell. However, I did find a 6-lug Pioneer, but in a 6.5" depth, with a starting price of only $325. It's item number 131526344902. You may be interested. Your best bet is to keep checking eBay and Craigslist for your drum. Another good option is to use the "wanted" section of this forum. You never know what other members might have! Good luck!
-Mark