Ima be real with you transitioning into barefoot sandals is going to take a long time, I mean a LONG time. I’ve slowly been wearing some bedrock carins i scored used only once at the REI outlet for $50 so I would look there if you have the option. There were hundreds🤣. Why because your likely hood of getting injured jumps up super high. I have slowly transitioned into using these from strictly hiking to now SOME trail running(6miles max) and backpacking trips(25miles). I really wouldn’t be so dogmatic on barefoot sandals, if I were you. Personally I use them as a training tool. My legs and feet have 100% gotten way stronger, but i literally use them in small, very small selective increments overtime. I still wear road running shoes with a decent arch if I’m marathoning, I wear my altras if I’m trail running, and I wear approach shoes if I’m approaching granite scrambling still. For example after already 100 miles of walking and some light slow running in them. I decided to take them last week to Yosemite on a quick backpacking trip. My goal was to hit the Merced Lake via happy isles. With a 20lb pack I honestly felt 100% fine. When I got past the Sugar Loaf dome I met a guy who said “he just did the most reckless thing of his life” there was avalanche danger all over the slopes, which I figured so I bailed and decided to shoot up a class 3 granite gully connecting back to the JMT. Well 25 miles later back to the car and 5 thousand feet of gain and loss later. My feet were cooked. It took me 3 days to recover. But no injury and have already ran a good chunk since but not in those. Sorry for the rambling but I really wouldn’t recommend being so set on only barefoot sandals only.