Hi and welcome to the forum. I guess the answer to your question depends on your goal: do you want an awesome, close to gen watch or are you looking for a hobby?
A lot of guys here take pride and joy in the process of getting the (gen) parts together, and modding the watches piece by piece. Some of them do it theirselfs, but others (like me) use the rep-friendly watchmakers on the forum. On you side of the Atlantic that would be Chieftang, The Zigmeister, Vaccuum for instance, but there are more.