I do my own frames but would probably charge at least $700 hundred for a basic base/clear repaint. Materials will cost ~$200 at least. 1/2 pint of base coat averages $40~80 alone from a body supply store. Clear coat/sandpaper/primers/steel wool/masking tape and lacquer thinner will be an additional cost. Decals are also an additional cost.

Here's a repaint project I did recently: Mid 90s Bianchi?

Powdercoating definitely seems like a more economical option if you have the capability and/or a local powdercoater.