I too have a 2003 chopper. Before I bought it, I contacted Big Dog about any outstanding recalls (thanks to this site). The bike is totally stock, and has had zero issues after 12,000 miles. 2000 of them put on by me this year so far. The Mechanic who has serviced the bike since it was brand new is my brother inlaws brother, so I know everything that has been done to it. All it has needed is normal servicing......
Chopperfreak is correct, because it has mostly standard parts, the guys at the shop say its a breeze to work on. Something to think about.