Dude, I'll be honest. Buy some knives, actually use them for an entire day, then use them for another month every day. Then decide what works best for you and then buy some steel and a grinder and grind out a knife or a few. Then come back here and ask specifics about your design. It's called knifemaking. Do you own damn R&D, and actually know something about your product. We aren't going to decide for you. Do the damned leg work already.