I just bought some Deutsch connectors, aluminum tube (to replace the steel I bent up... something just doesn't feel right if I were to use the steel tube), and a 180* bender. The new list currently consists of:
- Buy Duetsch connectors for all the different plugs I'll need: Done

- Bend aluminum for ignition coils
- Drill and mount coil pack
- Wire up coils
- Wire up new sensor suite
- Crimp cannon plug
- Order USB bulkhead connectors: Done

- Mount USB bulkhead connectors: Location known--it's not the glove box

- Wire up Dash: In Progress
- Wire up internal (to the cabin) inputs and outputs from ECU
- Order new pipe bender since my last one broke, to finish oil recirculation route: Done

- Design, cut, and send out for welding a recirculation tank.
I'm also working on getting some of the interior taken care of this summer. I'm thinking of re-upholstering the arm rest business with the same vinyl I used for the dash, and I'm currently doing research on SPAL power window units for easy implementation and replacement of the stock motor/assembly as well as the switches.
Next winter will be dealing with the dashboard and the rest of the interior--though I don't know of any places that sell new carpets, let alone skuff plates. I'll probably get in touch with Mazda about those.