Regarding servicing a Roadster in USA
here in UK there are forums and sites which will take you through just about everything you might want to do with a Roadster and there is a wealth of experience. FQ101 and Evilution are good sites to go to
Body parts are easy to fit unless you count the headlamp cowls which require a high degree of faith that they will not break
The Roadster net is also a great single model site with loads of info.
We will always help if you are stuck with anything.
By the way, the bottom plugs are a disaster! They are a pig to remove and need a special tool and a new set of knuckles.
Many people over here in UK are fitting oil catch tanks to save crap getting into the system.
Nice to see there are some Roadsters over the pond