First, I never installed the stock flat bars or levers. I had this conversion in mind before I purchased the bike. I think it worked out well.
Second, the drops are not dirt drop specific. They are FSA Omega compact bars and fit perfect. Still have a lot of control on/off road.
Third, the bike came with a chain tug that doubles as a hanger. I had a 1×9 setup on my ‘cross bike and really liked it. I may go the same route with the 29er.