I've never heard of Perma-zyme, but it sounds intriguing - if it actually does what it says. So I went online looking for reviews, and found the following. If you go down the thread, there are mixed reviews, including a rather in-depth study by someone wondering if it could be used as an alternative building material, and someone else who was trying it for a road. So far the thread doesn't have any review from anyone who used it years ago, telling whether it held up or not. Anyway, you might want to read through this and draw your own conclusions. If anyone else has actually used it, I'd love to her how it has held up.
https://permies.com/t/161414/DIY-Permazyme-recipe-alternative
I did finally find one success story, but it's from Michigan, and their soil type and weather conditions may not be the same as ours.
https://www.farmshow.com/a_article.php?aid=36705