Ahhh...okay. I guess the ST-20 was the budget model.
Looks like someone may have stripped the paint off of the stem.
I'd probably just compound and polish the frame and fork and leave it original. You could strip the rest of the paint off of the stem and leave it as is, repaint it or powder coat it.
The bike would look good with a set of black Skyway Tuff Wheels mags.