This is an oddity in the history of Nordic binding design. The EIE system, invented by Norwegian Dr. Nils Eie, required a special-purpose boot with a toe plate that would snap into the binding. This eliminated the need for a clamp to hold the toe down, and saved weight. Don't remove your Rottefellas from your Bonnas quite yet - you'll have to drill 3 new holes to accommodate the reverse (of normal) screw hole layout.
Bass Sports of Maine worked with the Norwegian manufacturer of these bindings to market them in the USA. This is a 100% new example, with all clips and screws included. Can't help you with the boots though - that might take some searching or creative innovation.
