I received and installed the replacement for a broken PTFE tube lock in the p1p print head. It should now run ok with the AMS.
I think I have the Form 3 back to good as new. There was a lot of IPA, used, I’m not going to finish the cleanup until tomorrow, so consider the formlabs/resin area closed for now.
There is a small amount of residue under the laser head cover, getting to nothing at all remaining would be a challenge. The laser head window, and guide surface all look good, so fingers crossed - we will see how it functions in due time.