I split a 5' diam log into quarters just to get it on my truck, one quarter at a time to the mill. There was quite a bit of loss. Figured maple, does not split clean and straight.
That said, to make your job as easy as possible, you'd want to work this wood green. Whittle it down somewhat oversized, then cure it.
As a side note, being a dopey kid, my first gun was made with a sopping wet plank of maple. By the time I was done, the stock was dry. Not recommended, but I am sure this happened more than once in history.