I followed your comment to skip most of the steps and just remove the keyboard cable and the batteries. The replacement of batteries revived my water damaged MacBook Pro which stucked in boot loop.
In the beginning I tried to avoid “finagled“ situation thus only dripped a drop or 2 of dissolver each time. I also use a thin tip to induct the dissolver into the gap. But it’s very hard to do the flossing work and very slow. For the last 2 central pieces I had to drip 10 or more drops for each line of tapes which eventually helped me to remove them.
For someone who can’t order ifixit dissolver, I got my “Arctic Thermal Material Remover” from canadacomputers.com. It may not be perfect but helps. I didn’t use heat gun.
Great article, thanks!