Ken, I second all of Jim's advice above. Documentation is of paramount importance if you plan to compete so gather up everything before you start to build. As Jim mentions, even airplanes of the same make and model vary from one to the next so pick a particular example of the type you wish to replicate. I also agree that choosing a simple subject is not a bad idea. However, you need something that will maintain your interest also. If you just have to have something like a WW2 fighter with the complexities of flaps and retracts and lots of detail may I suggest something along the lines of the Yellow kits. These are highly prefabbed with drop in accessories that will get you to the finish stage quickly. Unfortunately the number of scale contests has really declined on the west side of the country. You might drop by
www.scaleaero.com, I think they have a list of contests and locations. Best of luck and keep us informed on what you decide. Regards, Chad.
PS- If you post some particular types you are interested in I'm sure the members could point you in the right direction.