Unscrewed screws along periphery at the bottom; there are lots of them! lifted it out, uncoupled the heating elements, then replaced the cook tops. I had order the foam tape to go around the edge. However, I should have also ordered the ceramic burner rings, they were cracked. I managed to maneuver them into place, other people used high-temp glue, but I have to go in and pop them.
Have 3 or 4 wood dowels to rest the stove top on while working on them; make sure they are wood or something which won't scratch the enamel.
Take-aways:
Order the cook-top foam tape and ceramic rings together.
Budget about 60 minutes or more
Make sure you have 3-4 wood dowels that can span the width of the cook-top or more
Its time-consuming but not difficut