VEVOR Mini Lathe Repair - No Instructions...Help I'm Stuck. Rings Removal

So as you saw in my last video, I received the repair part. No instructions, no tools. I'm on my own. I also checked schematics to see if I can understand how to go about this. Since each lathe is a bit different with commonalities, I'm taking a best guess approach. There are no VEVOR schematics I have found yet that clearly let me know how to do this. As you can see from the video, I've reached a stopping (stuck, actually) point. I have no idea how to get these rings off and based on the shape of the new spindle there are plenty of rings that need to come off and go back in. I've reached out the VEVOR for help, but have not heard back. The plot thickens...BTW, picking up the spanner wrenches prevented a show stopper to even begin doing this repair.