Wanted 1:500/ Boeing Launch Customers

Looking for these models as part of a special collection. They are:

Starjets - Pan Am 747-100 "Clipper America" Model #SJPAA082

Starjets - Eastern Airlines 727-100 Model # SJEAL149

Herpa - United Airlines 777-200 (NG) Reg. N777UA

Thanks for your consideration!