I've got one on order now and it sounds like it will be closer to 8 months rather than 6.
If you know you want one, get your down payment of 250 started. You will have no less than 3 months to change your mind and they will call to reconfirm your particulars before they start. I would say that if you're looking at a T2 or some type of special edition, may require more of a commitment up front so they can order the wood.
I wouldn't worry about bugging them. They will be happy to answer all your questions.