I don't know what the kamis do, but don't they use springs from thing such as buses, and other vehicles which would require much larger springs than a standard pickup, do simply to the increased loads, so this might not be an issue at all.
Also, it would be interesting to find out that they were actually folding the Ang Kholas, even if it is only once. But I would think that there are other ways to reposition steel other than folding. One trick to get the biggest blade for the steel you have is to forge in a fuller, the steel had been at a uniform thickness, no the steel that had been in the <i>hollowed-out</i> area has been pushed into other areas, where it can be used to increase either width or thickness. However, I'm no smith, I've just talked to some in the past. <i>kind of like the "I'm not a doctor, but ...." testimonials</i>
Bob