I am new to this small electric world and am totally possesed with it, I want to build my own plane from plans but I need to know what foam board to use...also I sw some foam board at one of the Craft/Hobby stores in town and saw some what looked likw 1/4" foam...can that foam be used in building of these planes? If it is possible to get the foam locally?? If not where can I ge twhat is needed...? I am pretty clear on the rest of the motor, battery, and radio gear needed but I am not finding the answer to my lack of knowledge about the material needed to construct the plane.