How much FAAB to spend on Justin Jackson?

12 team PPR 3 WR league.

What percentage of FAAB would be good to spend on Jackson? Also, who should I drop?

My RBs are CMC, D. Williams, Sanders, Barber and Hill

WR: K. Allen, Godwin, Boyd, Anderson, M. Jones, Pettis and A. Miller.

Debating between Barber and Miller. Thoughts?

I’d drop Barber personally. I would at most spend up to 5 but even that for me would be pushing it.

I’m in a similar boat. I currently have a $5 bid in on Jackson to drop Pollard.