Preserving the original paint and art is always a goal for a restoration. If your paint is reasonable, then touch up and leave it at that. Or, you could even clear coat over the entire frame and fork set, once touched up.

The subject of bicycle restoration is, like most other things, extensive. I built, or published if you will, MY "TEN SPEEDS" to offer guidance to people, new to the hobby/sport/interest. I invite you to wander around the website, for a while, and see if you can pick up a tip or two.

Hope this is a help.