I don't think the bypassing doors are the way I want to go at this point, though it is a good solution. The tambour is all there and still looks beautiful but continues to come apart. Since I am repairing all the others in the trailer I was hoping to do these under the sink as well. Naturally I saved them for last, naively thinking that since they were such large sheets of tambour, they would be easiest to complete. But I can't seem to find a way to get them out. The more I try, the more the pieces keep breaking. Klutz that I am, I know that if I keep fooling with the cabinet, I will break something. But there must be some way to get the cabinets loosened so that they wiggle enough to get the tambour out and then back in. By the way, I used the method of repair I found on this site, given by Silvertwinkie. If I am doing this right, this is the site for viewing those directions;
http://www.silvertwinkie.com
I don't know if the person who photographed those step x step instructions is still on this site, but the directions were easy to follow and the photographs show each step. Since the repair has just been completed, it may be too early to speculate, but I believe from the way they seem to feel and look, this method may be a good one.
Anyway, at this point it looks like I may have to use spray adhesive and glue them while they are in place. If anyone out there has an idea how to loosen these cabinets, let me know.
Sincerely,
Sanders