@ekis You might have already checked this one out, and it's not exactly what you asked for, but depending on how you play a controller the Arturia KeyStep 37 might fit the bill. If you haven't already, try to get your hands on one to feel it in your hands and demo it. It's not everybody's taste, it's got smaller keys, semi-weighted and isn't the most expressive thing on the market, but personally I was pleasantly surprised by the whole package (the full feature set).