Don't let it overwhelm ya. It's a 4 Hr job. The only extra parts are the offset collar and extended nut. I put 2 BDL drives on my other bikes but now I don't have a gear/sleeve puller and an extra set of hands to do it so I'm letting Scooters Performance do it. $320 is worth the time it would take me.WOW! Seems like a lot of extra work has to go into making that set up work on a Big Dog. Thank you Shannon for your time and doing the write up and sharing the pics. Im going to think twice about doing this because Im not that mechanically inclined and Im pretty sure the shops around here wouldnt figure all that stuff out correctly. Again thank you and if I do decide to do it and I need more info I will call.