I have a few clients that request details like that...they're also kind enough to feed me and provide me with lifts and other accomodations to make my stay as comofortable as possible. Usually split the work up over 2-3 days to get everything completed and charge $500-1000 depending on what needs done. For custom work it's $50+ an hour.
Heck, I did an engine bay detail on a '68 Shelby a couple years back that was a $350 job.
...however, on a Jetta...???
Andy