Blind Docking of a peptidomimetic compound

I'd want to blind dock a peptidomimetic compound (2400 Da) in a receptor and I have 2 questions about it:

1. Should it be the most convenient docking protocol ZDock? If yes, which is the best protocol to minimize this peptidomimetic ligand?

2. Should it be possible to blind-dock the ligand using flexible docking?

Thanks to everybody

J.P.