Flat pattern a cylinder

Hi guys,

I have an extruded boss cylinder with various cut-outs in it. I was wondering what the best way to extract a flat pattern out of it. We use a k factor of 0.5 for rolling so I essentially need a flat pattern half way through the thickness.

I feel like the simplest way would be to use surfaces but I have zero experience with that part of Solidworks.

Thanks in advance.

- Steve

SolidworksModeling And Assemblies