Scott.......
My statements here, as usual, will be controversial, but I feel they give another perspective to things........😀
You've already made the effort and have a nice way to organize your tools. It might have been better, but it is what it is, and unless a redesign doesn't involve a major re-work, you might just go with your game plan. I've had tools positioned as you do for years, and there's never been a problem. This isn't to say the risk isn't there, but as long as you keep an awareness of the possible problems with tool edges exposed, you can minimize that risk. Some people are less aware than others, but this is not to say that an accident can't happen, even with the best consciousness level of attention to those risks.
I do, however have tools that are the most frequently used positioned a little differently, and those sticking straight up are less frequently used tools. My risk factor isn't as great as yours is.
Life is full of danger and risk. If we spend all our time trying to eliminate all the possible dangers, instead of doing what will best serve the purpose, I'm not sure life would be as much fulfilling. One thing about it, no matter what you do, there is always someone else that will point out how you could have done it better.......but, it's your cart, and you control how your personal decisions effect things like convenience, risk, etc.
If you have the desire to redesign your cart, go with it.......otherwise your shop is yours, and you make your own decisions.
ooc