Did not see a link in where to buy? Can you repost the link.This is where I bought my D2. Price looks about as low as I remember seeing recently. The price is somewhat less than Big Boys Hobbies but you might want to go with them and support a TNet member. Of course it's up to you, the price difference may in fact be a big deal for some.
EDIT: Just realized the link I provided is for the D2 with 11x13 coil and WSAII headphones. Haven't looked to see if they have other coils/headphones available at the same price. Either way, I've been happy with the supplier.
Amazon product ASIN B0C3QVYJPN