Loft between non planar surfaces?

Hi

I have 2, non-planar, surfaces where i want make a loft between and the convert them to a solid.

I want to make a pyramid-ish shape.

Doinf it with boundary surface with one surface at a time, would be way too time consuming. This is a grip surface and there is a lot of theese pyramid shaped contours.

Any help is appreciated!

Thanks

SolidworksSurfacing