No offense but those words sum up quite good everything ... If something has proven this thread and other threads or www's on the internet about Kodachrome before this, it is the degree of difficulty throughout this K-film/process combination, and what it is most important, the "results" achieved so far. Sorry to say that this is one more sample of the same.
However, I congratulate you for your work, for your perseverance and I encourage you to continue experimenting like many others in this thread encourage you whatever the reason for you (if that makes you happy) or anyother's hopes, just like many others before you with others tests before. I do not know how many films / chemicals have been "used" to keep nothing steady. We all know, very to our misfortune, that K-film has a definite limit for those experimentations.
Now, that said, in my humble opinion, I would not trust any of my K-films in you (or in any other one) or in your K-process (or any other DIY), no matter how "kinda sorta worked" (?) that would become in the near future, not only due to the simple fact of a non-guarantee, stable, constant and reliable outcome, but because I wish, for the remaining K-films that I still own, a different Photographic destiny.
So, the pity that I see in all these personal attempts full of good intentions process, is the wastage of the film intended for those laboratory experiments and not for the Photography itself.
I wish you the best and I hope that all your research, tests, experimentation will take you to a frankly interesting and novel point, I would like to see that, but far away from what we all already know the Kodachrome film should be.
Best