No need to replace the adhesive tape as long as you leave it attached to the op1 or to the back of the display itself. So when you go to put everything back together, slot the display back into place, the adhesive tape that is there should stick very gently and when you go to put the keyboard with the display glass back, everything will be held in place.

Also, this guide skips over detaching the ribbon cables when you are removing the keyboard, the two connectors each have two (2 on each port) very small black colored locking mechanisms on the left and right of the cable's port, using a spudger you can push those locking mechanisms up about 2mm, and the ribbons should detach from the ui board seamlessly allowing you to gently pull them out. When putting it back together, insert the ribbon cable evenly to the new port, and push the locking mechanisms into place (reverse from what you did before).