Well said Dragonman, I thought it over and deciced on a smaller tree.
Pat B,
I have splitted them
In the beggining the small wedge was keen to bounce off when hit, but once it came inside it went easy, 5-6 blows with big mallet
I sealed the ends, I used acril putty
and this is the texture of wood
9 staves came out
quite big also, maybie some of them could be split more.
Anyway, 8 were put in a dry place (basement) and I took one to my apartment
(im in luck with extra room for this)
This one is waiting to be reduced.
One more question tough, if an average temperature of this extra room is around 12-15 Celsius (heating for this room is turned off) and relative humidity around 55-60 %, is wood kept there is going to overdry?