If you're up for waiting for shipping from China: Push connectors: MK7 Gears:by x86Daddy - Smart_Rap
I built my SmartRap using mostly a set of parts based on the 0.4.6 version. I may upgrade to newer parts over time. The main thing that bothered me was the amount of bending upward the X axis does during Z-homing, exacerbated by the fact that I'm using a servoless probe method. I figured out a quick 2-cent solution, literally, and figured I'd share. I haven't tested it much yet, but so far, Iby x86Daddy - Smart_Rap