Yea, I can see why you'd want to come here instead.
Those can work, and I'll need to work on some gears, but nothing too difficult. I'm sure there's someone here who's good with metal working; hell, I can do it if necessary. You said you're good with wood, maybe you can try your hand at metal working too.
And sure thing. I don't know your level of understanding of math, but I'm sure we can work it out.