Quick update today. I have finalized the design and working on making my first metal prototype. I am moving forward with M390 due to the pricing and machinability. Based on initial costs the knife should be around $100 which is the price point I am looking for. It will be a few weeks until I have a working prototype so the next step is to work on the blade cover. Let me know what you think of the final design and if you have any other feedback. I love hearing it all.