Does trying to trade for Gordon make sense or even possible?

10 team Std league 1QB league
My team
QB Roethlisberger/Dalton
WR ABrown, MThomas, Boyd, ACooper, Sutton
RB: Michel, JHoward, Kerryon, DLewis, AJones, McCoy
TE: burton

Her Team
QB Rodgers/Mariota
WR: Cupp, Cobb, Hilton,goodwin, Crabtree, Hopkins
RB: Gordon, Carson, Crowell, Gore

She didn’t pick up Davis from waivers and is weak at RB, so I thought she might need an RB since Carson is hurt. Who would it take to get Gordon and is it worth it for me. Both of us are 6 and 3. Top team is 7-2 and a bunch of teams are 5 and 4