The Lace pickups are not really amazing, but the dually will be easy to split because it is litterally 2 single coils. If I were you, I would use one of the slide switches to do the coil split. The 2 off positions are pointless, and the switches could be wired better (for example one should be a 3-way selector like a Gibson, the other could be for series-parallel-split on the humbucker). Seymour Duncan has good color schematics that make it pretty darn simple. If you want the push-pull pot, the JS uses 250k mini pots, and you can get them in that value. You don't need any other parts.
