Thanks for the kind words. When I did this tile set I was unaware of the Hex Kit. What happened is that my hex rotation is off (when compared to that software).
I actually did a test with a tile - it worked, but it took me too much time... and I lost the motivation to do it because no one seemed to care about this project.
If you're willing to wait a few weeks, I can assemble it. Or let me know if you need any source file or something.