Crestline Window glazing bead

Please see pictures. I have not taken the existing Glazing bead out to replace the glass as it may get damaged doing so. If no replacement, I am stuck. It's from a Crestline sliding window from about 1985-91??.Shows 1321121 and Crestopane 81-91 on inside of alluminum glass divider strip. Glazing strip is 9/16" wide facing out with a 90 deg. leg that fits between the insulated glass panel and sash inset for holding the insulated glass panel in place. I do not know what the profile of the leg holding the galzing bead in looks like. I would guess it to be 1/2" - 5/8" long
deep to be about equal with the thickness of the insulated glass panel. I was hoping your experts would know what Crestline used for this window and vintage. Crestline does not have the part or much else to help. They refered me to you. Your #55-057 looks like what I would expect. If I have to, I could pry out a short length of the existing bead to see exactly what it looks like and measure. Please advise.
Thank You, Bob

Hi Paul,
Please look at new images. I took the plunge and got the Gazing bead and glass out of the sash. Pictures show the bead and sash. Diagrame show profile detail and measurements. Do you have this or an altrnative that would work. Where else to look?

Thanks Bob