Got a VERY old Silver Maple in my front yard. It may end up having to be sawn down some day. The thing is, it is over 4 1/2 Feet in Diameter 3 Feet from the ground. Would love to have that sawn into lumber , when it's time comes. But, most of the portable bandsaw mills have just a 36 inch diameter capacity. Is there a portable sawmill , or a way to saw that log that not result in having to trim it down to fit , say a Woodmizer ?