I think most still pick the K24 though for these swaps.

 

This is the stage 2 $8,750 package, pretty nice bump in torque.

 

I feel like you could do it for significantly cheaper with minimal effort of sourcing your own parts.

 

Well since businesses make profit then yes, you can likely do it cheaper if you do it perfect on the first try.. But you will most likely take a ton more time doing it and learning the lessons they already learned over years of doing these swaps. I have heard a few say they just did it themselves, took tons of time and ended up spending almost this amount on them so I really do not think this is a bad deal overall. Depends on if you are looking for a project or if you are looking to just get the car up and running and ready for the next track event