I really don't have a good spot to build on. Most of the places I would want to build on, would be too far from the electric and would have a long drive.
A building site is major part of the issue too. I don't want to live too far away from where I currently do. There are not any building sites close that are for sale at any price.
As for the renting the current house. We already have some rental property. So we are already handling renters.