Hi Scott,
I use the 2 floor switches with the 4 switch box. I also use a 4 leg stand rather than the "X" style. I cut a piece of 1" x 4" the correct length with notches in the back corners of the 1 x 4 to fit the keyboard stand legs. I then cut notches in the front side of the 1 x 4" to fit the switches with a saw curf out the back of the notches for the lines coming out. I set mine up: L to R: fillin 1; fillin 2; technichord; glide and Exp pecdal. I set all panel memories in the same order. I left some room between switch 4 and the exp pedal in case I want to add the other two. I'm not a piano player so I don't use sustain.
For a music rack I cut a piece of 1/4" plywood the size I like (about the same height as the wire job but longer) and painted it black. I attach it to the regular little wire thing they give us as a music rack with large size "binder clips". The "handles" on the clips, when turned down, also serve to hold the music in place if I'm in a breezy spot - like outside! I also attach small lights (from Home Depot) on both ends of the "new" music rack - the old eyes ain't what they used to be!
Walt