The Genuine kits actually not real dear to buy (not as cheap as making them). Damn, I had to replace the bonnet ones on a ute and had the rest left over, was going to keep them but gave them away or you could have had them.
The ute hard cover stripes are a PITA to get right because of the humps & hollow areas (unless its a dead flat one). If you want to make them just find someone that will let you measure their stripes as there's nothing special about them.