I'll second Joe's suggestion. Steve of Midwest Custom Fly Rods can help you out. He's a really good guy and, this being your first build, will certainly point you in the right direction.
Go to this link at this site for more info:
http://www.midwestcustomflyrods.com/contact.php
Or go to the link Joe gave you:
http://www.customrodbuildingsupplies.com/
Am I affiliated? You bet you tail- as an extremely satisfied customer. This guy's helped me out on MANY occassions, and I know I'm not alone.
John