Reset programing back to Sprint

[osxuser001]

I flashed my Epic4g to Cricket and now I am thinking about going back to sprint. Is there a way to reset all the phone programing and such back to its default setting it had before I changed things using CDMA Workshop and DFS?

I am also using the Cyanogen mod CM11 and don't want to lose my settings, apps and such.

Thank you all in advance for your assistance.