Excellent post, thank you. Great line and vital: "We have to lose our love affair with addresses and fall in love with zip codes again."
What I see as the perfect model for the Church  today is the Twelve Step Program of Alcoholics Anonymous, for iit is based in a Spirit of Action rather than a System of Belief. The freedom we get in Christ is  the loss of worldliiness, which includes these provencial loyalties to a particular church we attend or a certain denomination or sect. Doubtful we will see many willing to abandon these things, yet this is what Jesus took issue with the Jews. 
Through a study of the early Church, I was amazed at how much alike AA is to the Christians of that era and how apparently lacking the present day Church is in that spirit.  
-strong emphasis on fellowship and helping each other both with problems and to grow
-confession and testimony at each gathering
-the essential and daily spirit of action
-God as the one authority, not a council or pope or organization
-small local groups that function in their community

The basic message of the Twelve Steps is to place everything in the care of God and the primary path for this is to pplace godly principles before our own or others personalities, which does away with squabbles over Conservative or Liberal, this translation over that translation..