Keith...We have a '90 Marquis with Fantastic fans also in the kitchen and bathroom. I don't know if Fantastic Fan is still located in Michigan or if someone else bought them out.
On my parts list it states that part # 1050 is the lift arm assembly and #1060 is the Interior lift knob extension screw.
BCS may have the phone number for their operation. Also, Northwest Supply in Oregon may have some of those parts. Good luck.
Also, sometimes there is a Fantastic fan exhibitor at the FMCA national convention where you can get parts. Don't know if they will be at Gillette, WY or not. Hope this helps.