Jaw Surgery question, Sagittal split or FME

[MischlingTruecel]

I'm a 19 yo poorcel who needs trimax with impaction/ccw but my palate is fairly narrow. Is it possible/safe to get LF1 sag split WITH impaction/ccw or should I spend 1-2 yrs of my prime saving and expanding with a bone borne expander like FME before getting Trimax.