I don't mind the idea of Upshall and Brodziak anchoring the PK and the 4th line. Á la Hendricks and Gordon of the Wagon Line days.
Personal I'd put Khaira on the other wing with those two, as he's the guy I want to groom as a matchup player.
Staple Kassian and Lucic together, encouraging them to form a grind line. Toss Strome in there, and that's the bottom 6 set.
Leaves you RNH, Puljujarvi, and Rieder in 3 of the 4 top 6 wingers spot, with Caggiula, Aberg, Rattie, and Yamamoto battling for the last spot.
RNH-McDavid-______
Rieder-Draisaitl-Puljujarvi
Lucic-Strome-Kassian
Khaira-Brodziak-Upshall
Honestly for all the doom and gloom, that's not that bad, especially considering you've still got McDavid and Draisaitl to drive the top lines.