[Monochron]

Thanks for all the replies everyone, the project is really coming along. A couple new questions that I came up with:

1. I have never tapped anything harder than aluminum before, but we have a fairly decent set of taps that isn't showing too much wear. How possible is it to tap the ends of this shaft in order to secure pulleys/wheels?
2. I can save some money by going with round shafts in stead of hex. Will this long shaft (meant for the ToughBox Nano) work in the ToughBox Mini?
3. Here is my total list of items to purchase, is this a reasonable price to pay? I was expecting a little lower as it would end up being a good deal greater than the voucher amount you get if you go without the KOP drivetrain.