This update worked very well. Tougher to get apart than expected. My experience was that the prying tool is very flexible and bends. You are trying to find and push the plastic hooks inward slightly to release them rather than prying on the back housing. Also be careful with the Airport antena - it can pop off the connector from the interior pc-board. I didn’t find this out until I went to re-attach it and found he wire had popped free and I had to take out all the screws and and connectors and disassemble a second time to re-connect it! Fortunately ifixit has instructions on where that goes, thanks!