Kit-Studio from Germany & Classic Plane has releases 1/72nd Fokker F-50 and F-60 kits
Sources:
https://designer.home.xs4all.nl/models/f50/f50_engtxt.htm#july10
https://www.facebook.com/ScaleModels.ru/photos/a.632237406802735.1073741827.129310540428760/1935820573111072/?type=3&theater
Fokker F-60 conversion kit for Airfix F-27
https://designer.home.xs4all.nl/models/f60/f60mod.htm
V.P.