Identifying and advice – 2002 5900 USPS?

I came into possession of this bike and wanted help identifying. I think it's the 2002 5900 USPS with OCLV Carbon 110. Anything worth knowing about this model/year, e.g. was it made in the states, etc.?

This bike has been very neglected the past 10 years and is need of some love and upgrades. Is it worth getting it repainted by experts and new components? Or would my money be better spent getting a much newer bike and components?

Recommendations on what you would replace and with what to befit such a light frame? Thanks!