@clyde Thanks! Over the years I had a lot of time to think about creative solutions to problems in the build. I never anticipated taking it as far as I eventually did (you can tell the original design was quite simple). But I'm happy with it now. Maybe someday I'll try something more advanced, like rebuilding a classic cabinet in need of saving or something.
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first