DesiJr: I have never heard of the "Moses Model" of church government. I guess someone might look at the way Moses led Israel during the exodus and come up with a model that they might use for the church. I think you are better served to examine the early church and how it operated.
When Paul ministered in a city and the church in that place was established he usually left it to grow on its own for some period of time before returning to ordain eldership. I cannot say he did this every time, but it seems to be the pattern that is consistent with scripture. He sought out men with the qualifications of eldership (You will find these by searching the New Testament for bishop or elder as these two terms are interchangeable)and ordained them in the presence of the local body as those who were to watch out for or oversee the body in that location.
God also places servant leadership in the body in the form of evangelists, pastors, teachers, prophets, and apostles according to Eph. 4.
All of these leaders carry authority only insomuch as they are anointed by the Holy Spirit and walk in their callings obediently and their authority is one of submission based on Godly leadership and spiritual maturity. In other words it is a relational spiritual authority based on the choosing and anointing of God rather than authority borne by title or position. Paul talked about the Gentiles authority and how they lord over the ones they lead.
I think it would be really fruitful to study how the early church was established and governed rather than seeking a model from the Old Testament.