The Age of Pastors and Retirement?

[Rev. Dr. Charles B. Slay]

I received my second call in the ministry 30 years after I ran from the first Call. Biblically, I believed that my call to ministry was a call to preparation: Paul/Gameliel and Jesus/the Twelve. I am now 71 years old and very blessed by God, physically and mentally. I have been active in ministry for about 20 years and have pastored as an interim several churches. I have been in a fulltime ministry for about five years now but I want to relocate to a southern state (African - American Church) and complete God's call. Am I being realistic; am I too old to do the work of His who called me? I have a Doctorate in Christian Ed and 20 years plus in pastoral/teaching ministry. Please advise, suggest, criticize, etc.