Looking at teams who may be interested in getting additional picks I found Seattle who has only 4 picks in this draft.
The Seahawks pick is at 21, the draft value chart has that pick valued at 800 points. The Bills could offer the 2nd, 3rd and 1st 4th, total value 800 points.
Bills would have 2 firsts, nothing in day 2, but would have 6 picks, 4th, two 5th's, a 6th and two 7th's.
My thought is a DT and TE in round 1, a RB in round 4, then BPA for the rest.