I have some extra stiff ones that came with my kit if you want them CAT. I only replaced the inner on the battery side so re-used the ones on the drivers side.

I did mine last week and had to pre-drill holes. I drilled one, test installed one side of the staple, and made a mark to drill for the other side. Bending them was a pain for sure, I used a pin punch and a small hammer to knock them over, then a couple of taps with the same punch at the bend to knock em flat.