This was a great re-read
On my Ultimaker Original, with the blue tape wiped down with rubbing alcohol, I have to remove the build plate to remove the parts. I have to use a sharpened scrapper to remove them. That usually tears the tape up :(
I wind up using a lot of tape and of course, re-level the bed.
I have my heated bed upgrade kit though, once I have some time to record the installation, it goes in!