Hi. I'm trying to build a bass in under a week, but it doesnt have to look nice as long as i can tune it and it plays. I don't need fancy wood--plywood would work. What type of tuners should I get? By the way I'm making it as if the strings were the same as a guitar, but with the four bass strings. In other words, an octave bass. Any ideas of what type of string I could use? Thanks for any help.