Ok so i have a pretty good list of all of the parts needed from Mouser as a project.

The only thing that i have not been able to get nailed down is the PTC

The MF-Rxx is the series but i am not sure of the values that are desired. As what should the hold, trip and max current be and Max Voltage.

Without the PTC's the cost of electronics is about $16 worth of components and the stepper drivers from pololu of about $17 and if you needed Ardunio Uni R3 about another $30