Oddly enough, my cash lineup for DK is almost identical to Fanduel. 100% exposure to top RB's (Hunt, Melvin Gordon, Tevin Coleman) and cheaper WR's (Fitzgerald, MVS, Corey Davis, Maruice Harris, Kupp in some combo) with Wentz filling at QB and Vance McDonald done on Thursday (Uzomah would be the easy Sunday option here at $100 more).
For my GPP's, I found it's pretty hard to actually use all the money if you go cheap as hell QB. Mariota, Rosen, Bortles (Corey Davis and whatever other pass catcher, DJ and Fitz, Westbrook and Moncrief or Yeldon) they all have super cheap stacks you can use.