That will never fly as a "middle ground" because the second amendment was never written as a hunter's law. It's a Revolutionary, shooting-at-people law that didn't take into account advances in technology because they didn't matter.
What they had different were people upset with a government across the ocean and soldiers in their homes, and the only people upset with the colonists were slaves that weren't allowed guns, education, or freedom. So that made the problem we face way less likely.
Any middle ground like you suggest would take a constitutional amendment and mass adoption, and the ones with the guns that aren't likely to shoot up the place (Jan 6th excluded) are not keen on either.
At the beginning of the revolutionary war, militias, minutemen, and even the Continental army relied on soldiers to bring their own weapons from home. They would never have held off British troops long enough to have a revolution at all otherwise. This was an 8 year war, and only after 1776 did they begin to supply the Continental army with arms from France on the regular. Spain as well.
It was absolutely their intention to have regular citizens armed. With nuclear weapons? No. Be serious. With small arms able to be used by one person. To my knowledge, private citizens didn't have access to cannons at a reliable quantity to count on them in battle.
This is what our flawed founding fathers experienced first hand and amended the Constitution with.