Gerber Guardian sheath needed

I have a Gerber Guardian which I purchased in 1982 at the OLD Big Buck store in H'burg...I remember when I purchased it 'cause that's when I bought my first motorcycle as well, and carried the knife clipped to the handlebars...anyway, got it out a few days ago and one of the plastic clips inside the sheath which hold the knife had broken, got brittle, who knows. Any ideas for a replacement sheath? Should I contact Gerber? I have had great experience with CRKT on broken/lost parts, anyone dealt with Gerber? Or know a reasonable leathersmith who makes a fitted replacement?
TIA