RC Slope Soaring in Hong Kong

Greetings,
I recently acquired a Fokker FK-3 sailplane fuselage and would like to locate a wing (balsa build-up, sheeted foam core, or used wing set). So far, I have not been successful in locating a replacement wing. According to the full-size plans I have, the company name is:
Francis Products
PO Box 874
Cupertino, CA 95014

Blueprint created by Designer/Draftsman: L. Jack Weirshauser, Jan 3, 1971

General information about the aircraft:
https://wikihmong.com/en/VFW-Fokker_FK-3
https://www.airhistory.net/aircraft/240 ... okker-FK-3
https://fk-aircraft.com/history.htm

Might anyone know what happened to this company? Or where I might obtain a wing kit or perhaps laser-cut wing ribs? I will continue searching in the meanwhile.

Thanks in advance,
Eric A.