If your on Facebook, there's a page for Irish Whiskey - Buy, Sell, Seek Swap. If you have photos to confirm the date.
They have sold between 250-300 at auction.
https://www.whiskyauctioneer.com/lot/015376/redbreast-12-year-old-196070s. This would have fee deducted and the exchange rate to account for but I think my prices are close. The shop price will be higher to account for VAT and costs.
Best of luck with them. I'll send you a PM too.