Big Dynasty Decision

OBJ or Kamara?

Full PPR, 2RBs, 3WRs, 1TE, 1Flex

My Roster:
RB- DJ, Gordon, Kamara, Howard, Lynch, Guice

WR- MT, Evans, Hill, Landry, Marvin Jones, Kupp

TE- Gronk, Reed

Sooo OBJ for Kamara?

your league is WR dependent, and full PPR I think I go Becks

The guy is willing to trade OBJ for Bell; then he would offer me Bell and a 1st rounder (probably top 5) for Kamara. So now the options are:
Keep Kamara
Bell + a 1st for Kamara
OBJ for Kamara