If it can be done, trade down in the 1st round to take him; that is, if he is really the guy you want.
HOWEVER, you better have a back-up plan, and option 1A if he does get picked before your turn. But at this point, if he is really the guy the BIlls want at QB, I favor the trade down and try to get him later, and add a pick or two in the trade = that would be a great draft!