A while back I bought two of those Maclocks with the intention of modding one into a tiny Mac. After seeing the success of @WiteWulf I decided to give it a go.
Opening the case is definitely the hardest part. Gary said to use guitar picks to start, so I began on the bottom and opened a gap to get a stronger metal spudger inside to lift up the rear case to release the six clips (circled in third pic) from the front. We're inside!