Building a Console Electronics Mounting Tray

[thedink9]

I have a '85 23'CC and the console opening is covered by a teak insert with sliding doors. I want to replace this with a trimmed out insert that I could flush mount my electronics onto. the more thought I've given this the more confused I've become as I haven't got A CLUE how to start.
Could I get a few suggestions or better yet photo's of what anyone else has built. Thanks Rich