Flatten A Compound Curve Part For DXF Cutting

Hello All,

All help will certainly be appreciated!

I have attached below pictures to help explain. I need to flatten this part out, basically in a linear strip so that it can be cut. I've tried converting to sheet metal and flattening to no avail. Deform and flex don't seem to do what I need either unless I'm just not very good at those commands which is very possible.

Does anyone have any suggestions as to how I can accomplish a flat pattern?

SolidworksParts And Features