The most important foundational principle that explains "original intent" regarding rights is that rights are not dependent upon the words chosen to secure them. Rights exist not because a provision of the Bill of Rights recognizes and secures them; rights exist because "We the People" never granted to government any power to dictate to the citizen on those interests.
Any "interpretation" that includes imparting the words "well regulated militia" with conditioning, qualifying or repressive action on the right to arms is illegitimate. You are fulfilling the Federalists fears and warnings against trying to list rights and codify their protection. As they said in Federalist 84, because the body of the Constitution so specifically sets-out the powers of government, calling out that things shall not be done, when no power was ever granted to do those things, is redundant, dangerous and absurd.