Want to purchase a 300 AFS f4 (US model) in an effort to get max reach and still have something that I can occasionally carry around my neck and shoot handheld. Adding a TC14 gets me out to 420mm. Lightly used is ok too. Where's the best place to get one? B&H has it for $1,104.95 before the $200 rebate, which would bring the price down to $904.95 before shipping. KEH doesn't have any, Roberts & Samy's are higher, and Digital Foto Club only has the Import model. Any other ideas?