Just bought this and thought I'd share.
Might also be available at the Wireless1 eBay store but didn't try apply the code. Wireless1 had the same buy it now price.
Free delivery with eBay plus otherwise it's plus postage.
Have held on to my RT-ac68u for many years now running Merlin and when I recently saw this get Merlin beta (apparently at beta 4) had it on the wishlist.