For Blue #2, I recommend Itsuo Doi's yanagi which he make for Aoki Hamono and Suisin.
If you're into superb F&F yanagi, I recommend looking into Tadokoro Hamono. Makoto Tadokoro-san was trained under Morihiro-san (sharpener for Konosuke Fujiyama) and he uses blades that are forged by...
You could also buy Aritsugu directly from here too: Japanese Knives
I purchased a takobiki 3 years ago from there and they're very friendly with fast response. They let me choose the type of handle I wanted for free, optional free name etching, and free shipping.
I know what you mean, I was eyeing that one too yesterday but wish it wasn't already been thinned. I'm on the same boat, looking at the Blue #2 one on Carbon for awhile but couldn't get myself to pull the trigger.