Demarco Murray Trade advice

12 team, Standard scoring.

I'm currently 8-2, in 1st place, 1 game ahead of 2 tied at 7-3. The guy is offering me Murray for Ellington and Hopkins. I'm hesitant to do it with Demarco and a few of my backup WRs being on byes, and because I really don't want to mess with what's been working. I'd have to play Joique as my RB2 this week, and John Brown in the Flex. Is it worth sacrificing this week to get Murray? If it weren't for the byes this week, I would have already pulled the trigger.

ETA: Our trade deadline is tomorrow.

QB: Rivers
RB: L. Bell
RB: Ellington
WR: Marshall
WR: Sanders
TE: Olsen
Flex: Hopkins
D/ST
K
B: Decker (bye)
B: Torrey Smith (bye)
B: John Brown
B: J. Bell
B: Alex Smith
B: C. Hyde

TL;DR: Should I trade for Murray while giving up Ellington and Hopkins?