You should launch an opening page stating what your product will be and a conservative arrival date. A single homepage will do. This will help your site be out of googles sandbox much quicker after product arrival. It takes a couple of months for a new site to start coming up on search properly. Roll out of the full site can then take place after product is in hand when your ready to advertise and take orders. The site homepage should have your target keywords such as fly line, fiberglass, bamboo, vintage rods, etc, in the text. Blue Halo Gear did something very similar during there start-up and I think it worked for them.