Attached R1004 to R1001R using the AN426AD3-3.5 as instructed. Squeezed the two by the leading edge by hand, and bucked all remaining (except last one by trailing edge) by hand. Checked all rivets with a rivet gauge to ensure proper seating.
The final rivet on the trailing edge of this step seems impossible. Will be doing research online and possibly ask Vans about how to proceed with it. May just use the blind rivet called out for on the other side for this side as well...