Because there is already a split in the base of the trunk, splitting is the best way. With this log you have to deal with radial twist, and some longitudinal twist at the same time. This will happen automatically when splitting. A bandsaw, you can only stear in one plane at once, if the grain changes radially, like it does in this log(pith to bark), you can't change it safely mid cut, without risking breakage of the blade, especially with a 10" dia log in the round.
There is no doubt a bandsaw is the most economical method when you want maximum board ft, or the log is a straight trunk with straight grain. Even will a bandmill set up, the log needs either one flat surface to ride over the table and not twist mid cut, or it needs to be dogged on either end of the mill so it won't turn during the cut.
Work with the grain and don't disregard it at this stage.Same again with the cracks that have already developed in the end grain. Sure there is some leeway once it is split into quarters, when you can see exactly how the grain runs, then you can tell if bandsawing really is an option.
Otherwise you might get only one bow, rather than half a dozen.
Whatever path you decide on take pictures and show us the results. Good luck.
Hamish.