Window regulator replacement

Hello, I'm after some advice. Any alternatives to rivets?

Window regulator repair in progress. The metal plate holding window regulator is riveted on to door.

There are X10 7mm holes for metal plate/regulator to door attachment and X4 4mm holes for speakers. Rather than riveting are there any other options? I've seen rivnuts.

However a size guide said a 5mm hole needs M3 rivnut not seen any smaller sizes like for 4mm diameter hole. I could probably put speaker on new metal plate with access to rear. Otherx10 holes 7mm hole will be blind/1 side access only.

Suggestions appreciated.

Camera rotate photo broken - I'm not working on upturned car 😂Thanks

Ps Edit - reading around, looks like a few fabias suffering this failure. The motor is ok but the cable snapped in my case near top rear pulley.

Edited 1 hour ago1 hr by bmbmdmb