We're probably looking right around $300. The chip alone is $70. I am going to have to have a pivotal part made by a machine shop, I'm currently drawing it up. And once I have a price that 100 of them will cost I will be able to give a solid price but I'm betting the piece alone will be close to $100. If I'm wrong and they can do it for $50-60 we will be closer to the $250 range. I'm super stoked about the mod btw.
I've been stoked about this style mod for months!! Soooo glad you decided to make it happen at a reasonable price point!