Not knowing any better, I made scrapers for forestock moldings from a piece of drywall knife. I sketched out the profile on a piece of paper, glued it to an approx. 2x3 inch piece of metal, filed to the profile, and soaked the paper off.
It worked pretty well to establish the moldings, but I cleaned them up with files and sandpaper.
I also made one in sort of a part of a French curve to hollow the cheekpiece and it is still going strong.
While a cabinet scraper's thickness will probably provide more stability, the thinner stock is easy to file to shape.
Just one solution.
Larry Luck