Which stitch?

I’m recycling the sleeves of an old wool sweater into longies… and since they had live stitches, I just frogged them down partways, stitched them together for the crotch and picked up the stitches to knit the butt/waist area.

But, these sleeves are cabled. Each sleeve has 3 (6-stitch) cables. They’re worked on a background of reverse stockinette, with a stripe of stockinette between each one.

So my question is, do I continue the pattern up the torso of these longies? Or do I stitch in (solid) stockinette or (solid) reverse stockinette? Or something else?