Ribbon - question about motor construction

Hello and thank you for your help.

I am building a Ribbon motor and trying to understand the following:

My motor body is made from steel and the corrugated foil is made from aluminum.  should i connect the foil strip directly to the steel motor body or i should create a separation ? I am referring to the top and bottom parts where the wires connect to go to the transformer.

What option should i go with ?
1) Motor body --> Foil --> PCB (Double sided connected to the wires)
OR i should do
2) Motor body --> PCB --> Foil -- PCB (Double sided connected to the wires)

I hope that my question is clear enough.
Thank you !

Tom