SX620 -- replace broken lens assembly

How do I disassemble a Canon SX620 to remove the lens assembly?

Is there a video or step-by-step instructions anywhere online?

I have the covers off and I can see a bunch of different ways that lens assembly might be attached and connected. But it's not obvious how to remove the lens assembly without damaging the surviving parts.

I have four (4) SX620 cameras, all with various issues. So I have spare parts