Searching for replacement parts for P-234 DC P-233 233 D.C. LC Parts - can you help?

Model P-234 DC | Operators | P-233 DC | 233 D.C. | were used on old model Biltbest Wood & Clad Casement Windows as well as some other older models using window crank(s) operators |   P-234 LC Handles | 1965 thru 1999 | old window hinges | shoe glides | operator handles | covers | Upgrade Style Folding Handles and COVERS, P234DC | P233DC | 39-013 | 39-014  | Casement Window Operators | 39-027E | 39-028E | 39-114L  39-205 | hinges | 36-013-10 - Two (2) Bar Hinge Sets | 39-505 Entry-Gard Tracks

LOOK HERE:  https://www.windowdoorhardwareparts.com/content/biltbest-casement-operator-old-style-crank-p234-p233