Extrema Ratio is an Italian-based company that makes, amongst other things, very overbuilt knives. Their folding knives are 0.23" thick and sabre-flat ground so that most of the blade is close to 0.23" thick. Also very heavy and with poor cutting ability on materials that most Spyderco knives sail through (personal experience speaking there). Very neat knives, but not my cup of tea.
I think if we keep the ultra heavy-duty rated Ball-Bearing Lock, 3.5" blade, premium steel, and G-10 scales, but drop the 4mm thickness, we should be able to beg for a hawkbill that's very sleek and capable for the MBC'ers and very handy for the rest of us, too. I think that using the Ball-Bearing Lock (the most popular in the lock poll) would make the knife more amenable to a fine-grained non-stainless steel (they are legion), too. If we're willing to trade concerns of corrosion with concerns of having a durable edge that is less than 30 degrees, several tool steels would work great (though not D2 so much).