Go to the "Bike Rumor" web site. A company named "TRW" (probably not the TRW of military equipment fame) is now offering an 11-speed 1x11 drivetrain (11x50 or 11x52 cassette, crank, bottom bracket,. rear derailleur, chain and shifter) for about $400 with a 1x12 (10x50 cassette) similar group coming soon. Check it out.