Dave Hoskins (Junkdude) is my go to guy for all of my saxophone needs. The thing about sometimes having to wait a long time for a morgan IS true, but it's not Dave's fault. Ralph is very particular in the blanks he uses, and if he doesn't have the right blanks, he won't make pieces, therefore Dave cannot get them. Yet, Dave is still the best person to get them from. You can rest assured that the last person that touched that mouthpiece is Ralph.
Check with Dave to see if the model link you want is in. If it is, I know he will ship it right away and you won't have any problems. Junkdude is one of the best in the field, with good prices too. I can't recommend him highly enough.