I know I am late to this party, but let me chime in anyway.
While I think I agree with the heart of what you are saying (Plurality Elder, non-hierarchical church governance), I would point out a couple of things.
First, there is nothing wrong with calling Elders "pastors." Pastor just means shepherd, and is still used in some English speaking countries to denote this....in fact, it was used in 16th century England in some areas, when the KJV Bible was translated, which is why the King James Bible Says,
"Eph_4:11 And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers;"
Notice it does not say "elders" there...that is because pastor and elder refers to the same office.
Second, there is no requirement in the New Testament stating how many elders a church should have. "Elders" are to be appointed; I agree in the best case scenario this would be multiple. But this is not actually commanded anywhere.
So, here is my thought. Each church should have at least one elder/pastor. That is all scripture tells us. Some churches do not have more than one person that qualifies: my church doesn't. As the sole Pastor/elder in my church, I have been trying to move our church to a plural eldership model, but I have no qualified men. Most of the men in my church are either not able to teach, or young, new believers. Thankfully, the Bible does not set a required number on the elders....one or more is fine.