That is reasonable
I am tall73, and I am a pastor in the Seventh-day Adventist church. I have been pastoring for around nine years, mainly in rural areas. I currently pastor three churches, which is not uncommon in areas with less population.
As a senior pastor you get to wear a lot of hats including:
- evangelism (public meetings, individual Bible studies, free market cell groups, door-to-door, etc.)
- preaching and teaching
- training
- counseling
- administration
- conflict resolution
- visitation
- assistance for needy
- Community service
- disaster response
I have also assisted with a prison ministry and a recovery program that one of our churches runs.
As for my theology, there is a lot to explain with Adventists, so you might check this link:
http://www.adventist.org/beliefs/fundamental/index.html
In this position, however, we are functioning more as a chaplain, and will work with folks where they are at.