I have started my first "scratch" building project. I received the plans fro the AMA Plans Service. Motor, battery and ESC where on the plans, but noting else. My question is , How do you determine how much of balsa, plywood and other supplies are need to finish the project. I have a limited working space and limited funds, so buyimng in bulk is a little out of the question, Any help would be appreciated.

Thanks
Mike Waddell