Not impossible but very difficult to make that double-bend without making a jig of some sort.
E.g. miil or fabricate a step of height equal to the displacement, in a piece of steel bar or thick plate, cut it cross-ways to form a matching pair. Drill a hole to locate a pin than will align the lower die, blank and upper die. A large bench vice would probably supply enough pressure to form the part.
Alternatively you might get away with making one bend then clamping it between some plates of appropriate thickness in a vice to, make the second bend.