100% agree with your points! This is kind of the summary of all the several differencies in the DayZ's "bio"product, since there is a vastity of mods ( Epoch, Overpoch, Vanilla and so on ) you can also see which pros and cons of each mod. As previously said, I agree with Fastjact and I'd love to see such project take shape.
By being highly subjective and personal preference, you can also not take note of this: PVP isn't that cool, unless we have fair people playing in the server.
Unless we have very few "Traders", or even none, PVP could still be fine, since there will be less chance that an advantaged player will camp one of the many spawns (or the airfields like in the DayZ mod) and simply spend the day shooting at fresh spawns and bambis.
Regardless to the previous words, a very good way to handle PVP players and/or disruptive behaviour would be to state some rules about engagement and combat mode, as example if a player gets shot at, cannot "Alt + F4" to avoid losing his gear. If you start or get thrown in a combat, you can run away and try to escape from your aggressor(s) and ONLY after putting some distance from the enemy, you can close the game. But the worst thing is closing the game while you're bleeding, that's heavily ugly and not sportsmanship.