Hit the auctions!! My friend just scooped a Pedersoli Le Page in .36 at a great price IMHO the term, "entry level" is a nice way of saying " cheap crap".You could probably build a decent underhammer pistol.You might be able to pick up a totally thrashed original and put a modern barrel on it.The very best available[in my opinion], are the H.E.G.E. Siber .33, the top three Pedersoli's, the Kuchenreuter, the Mang and the Le Page and a custom built.These are all bloody expensive but do go surprisingly cheaply at some auctions.But remember, no matter HOW fine you set your trigger, youy still have to squeeze it![Wish I could remember that!!]