You are still obsessing over the complexity of the major scale modes. The major scale modes. That's just the beginning for a pro player. Once you learn the modes and scales and arpeggios and pentatonics, then you have to learn (gasp!) songs and stuff, then you have to know your genre very well. You can get by with a MIDI transposing Ionian keyboard, but frankly that will look to everyone else like a crutch or enabling device for the less-abled. Unless you can make great music on it, in which case you will be in demand as a player.