if you dont saw them up, they will check beyond repair as they are short. Paint, wax, seal the ends even if they are cut up as this will help with checking and splitting.
Take the sawn boards and sticker them. Using 3/4” x 3/4” sticks placed perpendicular to the boards between each layer for moisture to evaporate evenly around all surfaces. To air dry lumber allow for 1 year per inch of thickness, plus a year so that a 1” thick board takes 2 years, a 2” board takes 3 years etc.,
It looks like you have limbs and often this lumber turns out to be quite angry, tough to tame and even after drying they tend to bend and twists after cutting them into parts
Good luck
-- "Good artists borrow, great artists steal”…..Picasso
