I just sent you my work-in-progress one, too, but honestly building it from scratch is probably the best way. Everyone's airplane is different, and everyone's checklist should be custom to their airplane. I ensure mine matches 1:1 with what I wrote in my POH, and I update them together.
Also, if anyone is particularly brave, I'm working on a web-based G3X checklist editor, for those of us who don't have (or want) a Windows computer. If you'd like to help me test this [disclaimer] very rough and experimental software, which you'd be using entirely at your own risk, please send me a PM and I'll provide you early access to it.