My two cents worth : learn to print color neg in the darkroom. Then you don't have to worry about all
this scanner nonsense with half-baked results. Otherwise, farm it out to someone with a serious quality scanner. But heck, I did portrait commissions on Cibachrome, so yeah, slide film can be bent all kinds of directions. But portrait work is far easier using a color neg film like Portra and RA4 paper.