If it's what I think it is, it's going to be pretty dense wood, and looking at the core of one of those log's, possibly as hard as Iron-bark.
If so, you might be better off cutting the logs quartersawn ASAP, then air drying the more manageable pieces. https://www.youtube.com/watch?v=VvUPJPFg4wM
Air drying lumber https://www.youtube.com/watch?v=xA81Ko0qZgg