I thought I'd report back for the benefit of sharing my experience with others. So far, I have received the nylon bar stock (it is actually not as white in color as it appears to be in the pictures; it is more of a "natural" color, which is closer to the 40 year old part); drilled out the 1/8" rivets to separate the nylon "catch" from the spring steel leg; traced the profile of the catch to the new stock. Next will be to start cutting and shaping. I'll continue to take photos to illustrate the process, and post as progress is made. I hope all goes well. Enjoy, and thanks for all the feedback.