I've been riding bikes for years....mostly just to commute throughout high school and college. Once I graduated and moved I didn't have a bike anymore so I kind of slacked off. My fiance got me back into it and I bought a Centurion Accordo 12-spd to ride around on. Recently I ate **** on my bike and am recovering with 10 stitches in my face ....so I bought an old Gitane Gran Sport De Luxe frame to build into a fixed gear while I'm out of commission. Long story short...I'm looking for info on how to build my first project bike...painting, gear ratios, affordable parts, etc....Any tips?