Thanks for posting this... I think I'm going to order a set of the halcyons. I also installed a 400F bar (on my cb750) and I don't care for the black, square, bar end mirrors I have. I bought them on BikeBandit or DennisKirk a while back and have had problems with the throttle side twisting around. I also don't like how their look doesn't go with the rest of the bike.
Sounds to me that you already made your decision, based on some of your statements:
"but I don't want to keep wasting money on crappy mirrors"
"I prefer something that is stock, or at least period, appearing. No billet, etc."
I suspect you won't regret spending the extra $70 dollars.