First question: Are you a beginner in RC planes, or just a "beginner in own designs" and already have experience in RC Planes.
If you are a real beginner, I would not recommend on trying to design/build and fly your RC Plane. It will take a lot of time to design & build it, and even more frustration trying to make it fly, or see it crash due to inexperience...
Instead, get a kit and learn from it...
Otherwise, try
http://www.rcfaq.com/INDEX.HTM
or search the scratch build forum on this site. For the design of your wing profile, use a program like Profili.
www.profili2.com
A must have if you're designing your own plane !