For anyone still looking for Jurgen's Ultimate 42009, it's still out there. I'm about finished with the build and my own R/C mod. I found it at:jurgentechniccorner.com/index.php/building-instructions/22-ultimate-42009-building-instructions. What an incredible design/build. Several times I thought Jurgen surely made a mistake, but every time it was me! I find TLG's IR remote control stuff klunky at best, so I did my normal R/C conversion: 8 (Jurgen's) motors, 8 ESCs, two RXs, and two cheap Chinese radios. It was/is challenging build. Not quite done yet.