Sure, but I'm not sure you can compare sleeves to custom IEMs. There's so much more work involved with the latter- including tuning, testing, and so on.
I ordered my k10 through a dealer, which I understand has a different queue. It was also part of the Black Friday sale, which means huge volumes. The iems came in two months. If you include shipping times from Asia, the dealer waiting for my impressions, and the higher volumes then, that's actually not so bad.
So far the fastest (inclusive of the entire process) has been Lear, which took one month from my order to being in my hands. And yes, I say Lear is the fastest even after comparing the time it took for my Legend R to get here. Don't get me wrong, EarWerkz was certainly not bad on speed; Lear was just faster.
I'm not really one to go into details on how long things take because I really don't mind the wait, as long as it doesn't get unreasonably long. As far as I'm concerned anyone ordering a custom product today should probably expect around a two month turnaround. In general. Of course if we're just talking about sleeves, then it should be much shorter.