My question here is really two fold..

Part 1: Can I install or is it worth installing the wiring harness without the dash mounted? I'm waiting for my padded dash to come in.

Part 2: I'm also waiting for my upper steering shaft.. not sure if I can even put my dash in without it. It might make getting to the springs on the shaft difficult.

Honestly.. I'm looking for things to do on the car while waiting for the motor. I have the passenger footbox left to rivet, insulate the cockpit and underline the wheel wells of the body. I may put the body on and start attaching doors and all but I have read that it's best if the dash is in place.
Thanks for any advice!