Nick R, If you're going to hang them on the wall for display only, with no intent to ever fly them you can eliminate installing engines, servos, or any of the other equipment we put in them to make them fly. It's called a static display model. You don't even have to make the control surfaces as separate movable parts. This will simplify construction and reduce the cost of each model you build. But I warn you, after you build one or two, one night you will be staring at one of your planes, admiring your work and think to yourself "I wonder what this would look like in the air?" "I wonder if it would even fly?" That's when you're hooked! Good luck with your adventure. My practical advice would be to start with fairly simple kit from a brand name kit maker so you can get the hang of it. A maker who supplys a good detailed set of instructions that leads you by the hand with step by step detailed instructions will help you succeed. Great Planes and Topflite come to mind but there are others and maybe someone else can suggest a good kit maker for ease of construction for a novice builder. Perhaps a modern laser cut kit. Maybe something from Alien Aircraft Corp.