Matt, I had to remove your post from the Greystone ATF section. It is a duplicate of the original post in this thread. Forum rules state no posting of the same thing in multiple sections of the Forum. The Factory monitors both sections of the forum so they will see it here as well.
I can tell you though, that most everyone is pretty busy at this time of year and it may take longer to respond. An earlier reply suggested 6 to 7 weeks and I can tell you that is a pretty accurate estimate. The dealer you are ordering from might be the best to answer your question based on their prior ordering/lead time experience.
I also noticed your signature states you're looking at a Big Country but you're asking about the Greystone. Still haven't decided which would suit your needs yet?