Thank you for your help.
I will not use headstock,because i dont wan to spend much wood.The wood i have is 50" long,so 45" is the most i can get.If i can go 46" scale,i will.I have allready the strings,and they are like the common strings but larger.Nit double ball end.
Thinking to have a staight cut in the headstock side,and use zero fret to start the scale.On the bridge side,i thing to use 5(i forget to tell it will be a 5string) i will use 5seperate saddles (i cant descride it,you know,the bridges who are one string alone,)and behind of them,common tuners to tune the strings