Looks great Scott. Tight arse?? I call it recycling and being savvy! You did well forming s/steel which can be a pain to work & drill compared to plain steel sheet. Was the 0.5mm too thin to hold its shape??
Can’t comment of mounting of the two speed wiper motor. I’m only running original single speed motor. My thoughts on wiring is as per picture. Unless someone else can confirm motor connections you may need a multi meter to check continuity. When the motor is in the “park” position one of ...