I've done several Buchanan kilts and never noticed an issue with pleating. As others said, so long as you account for that fact that it's asymmetrical when you order (order single width), you should be fine. The only SMALL issue is that if you are doing a large group and want the front aprons to all be centered on the same stripe (i.e. the white stripe in the red), then 1/2 of them will have the yellow block to the RIGHT of the red with white stripe and the other half will have the yellow to the LEFT of the red with white stripe

BTW, If anyone is interested in a 5 yarder in Buchanan Ancient (the same as in the picture above from PaulHenry), please let me know. I have 5 yards of cloth (single width) extra from a recent order which I'm going to be selling at a discount... $290 for a 5 yarder with the rush charge added in... that's $290, made to your measurements, delivered within 3 weeks. If you just want the cloth, it's $150 delivered. Call the shop if interested.