im new here...first post!..anyway..
i think you really under estimate what you are getting yourself into. if you are still at high school..there is probably no way you could find enough time to devote to making a guitar, and finish it before you leave school...
creating an instrument from scratch is a mammoth task for a begginer with no wood working skills, you simply cannot do this without proffesional guidance.
to put things into perspective for you...
i studied instrument making for 2 years...in my class were 12 students..we all chose an insrtument to build..some made violins, electric guitars, mandolins, classical and accoustic guitars..i made an steel string accoustic (more about that later)..
we had a tutor/luthier, who specialises in all manner of stringed instruments. also a another part time tutor, who was and still is a proffesional luthier.
without the guidance of these people, not one of us would have been able to make an instrument..
..each and every piece of wood in any hand-made stringed instrument is surgically precisce to a degree that no professional joiner or carpenter would understand....let alone a "craft and design" high school teacher...no offense, im sure he's very good at his job..but he cant help you...even if the electric guitar is the easiest of all instruments to make.
if you really want to make an instrument, you will have to find a university or college that teaches it...
to make an accoustic guiatr from start to finish will take a proffesioal luthier around 3 months or 1 month for an electric..but they dont do it that way..they will make 6 at a time, for more efficiency...the folks in my class took 1 full year study to make an electric guitar..and 2 years for any other stringed instrument...and thats starting from designing the plan with pen and paper and devoting thier full time, 5 days a week.
oh...and all that wood and metal parts is going to cost a fortune!
best of luck!
mark