Portable Gear Bag That Transforms Into Hand Cart

This portercase is my key to solo flying with crap tons of gear and still being able to hold a cup of coffee in my other hand. ITS DISCONTINUED and I’m attempting to convince SOMEONE to make this bag with me again because it’s the worlds best gear bag invention (or will be after my few adjustments). Would you buy a bag like this that turns into a perfectly balanced hand cart? -