First timer here

Everything is original. The odometer reads 16028. Not sure if it’s rolled over or not. Not sure how to start cleaning everything up. Since it’s in such good shape, I think I want to polish the paint and leave it as close to original as possible. I’m going as far as to put the more aggressive tires on the rear and streets for the steer tires. I’m an old country boy so I thought it’d be neat to make it look from the period