In fact he decide alredy, i´ll thin out a little at the 10th fret till the neck heal, something about 1,5mm to 2mm.
He had tested a gibson 50´s reissue and don´t like of the neck shape, too fat, but he also says that don´t wanna a thin neck.
so I think that 2,155 to 2,4(I´ll thin a little bit here) it´s a good measure to the neck.
Of coure I´ll setup all hardware to test, but i´ll make the test, the owner its someting about 800km far from me!
Tks the advices!!!