Hopefully soon. It will be a hard conversion (for my limited skill level) because I want it to turn out really well. I have some ideas! The conversion kit was made specifically to be used in conjunction with the left over Sphinx bits. I got it as a Christmas present. I found it at: https://hexy.store/miniatures-upgrades/1340-colossus-legs-conversion-kit.html I agree that Kurnoth Hunters would be a perfect fit. Making wooden bases would be really easy. In terms of the death of the Necrosphinx, after killing the dragon the two riders fled and I pursued, but rolled extremely poorly. The riders got away and I was charged next turn by the Treekin and as you said, a couple of lucky 6's and it was all over. Yes, she was using the 8th edition WE book. It is a pretty potent book in my opinion, although it is more of a finesse army. In the right hands, it has to be one of the best books in 8th edition. I've already got my next army list set up for an eventual rematch. Actually I have two slightly different versions of the list, although I am leaning heavily towards one of them.