I won't keep beating this up, but simply put, your distinctions are not found in Scripture. You list "every reference for all to see." Yet in your listing, you in fact do not list "every reference for all to see," (you omit some) and furthermore, you do not distinguish the references that deal with the church and those that do not. That is one fallacy of word studies by concordance. It doesn't make these necessary distinctions and can lead to faulty conclusions.
For instance, you list 17 uses of poimen. Yet you do not note that only one of those listed references have relevance to the church (Eph 4:11). You also do not note the uses of the verb, poimaino, which means "to shepherd." When you include those uses, you find that the elders are instructed to "pastor" (Acts 20:28, 1 Peter 5:1-2). Those are significant omissions. You omit 2/3s of the references to pastoring in the church. How can you have a complete understanding of the pastoral office when you omit 2/3s or the references to the "poimen" in the church?
Similarly, your references to the episkopos is lacking in that you include a reference that has nothing to do with the church (1 Peter 2:25) and omit the verb form of 1 Peter 5:2.
What is significant about these omissions? They directly refute your position. In Acts 20:28 and 1 Peter 5:1-2, the elders are instructed to "episkopeo" and "poimaino," to oversee and to pastor. To the elders alone is this responsibility given. We must note that it is not given to "some elders" or "select elders," but to "elders." There are no elders excluded from the responsibilities of overseeing and shepherding.
In similar fashion, the vast majority of your list of references to elder have nothing to do with the church. They deal with Jewish elders.
In short, to develop a biblical theology of the pastorate, you must eliminate all references that do not deal with teh church, include all references that do deal with the church, and then see what the text says.
When you do this, you will find that the elder is the pastor and overseer. Pastoring and overseeing are the responsibility of the elder or elders in the church.