I also wanted coronation aces and was talked into the mist because it's similar, less expensive, and will last longer. I trusted the guy I was getting a fitting from.... really well regarded... and went with the mist. I have no regrets. They're nice blades. As for the aces - they may be made in England but I know you can get them in NA. I've seen them in shops.
My 2 cents: try the mist. I was pleasantly surprised.
edit: the aces are made in England... my original post was a little unclear.