Gary, if you pick up a centaur, I would love to put a couple arrows through it.
As far as guys not liking the wait, how can you sit in the woods all day? Honestly if it were me and I didn't have a bow to shoot.... I'd buy a used or stock bow close to my specs, then have the new bow built. By the time your name comes up, you will know exactly what you want. It's better than rushing through a build and changing your mind after its too late.
When you get your new custom bow, you can sell off the old used one.