I had several metal scribes and awls to help in getting rivet holes aligned. Start at the holes most closely aligned and pull them together working your way down the rivet line. I had a few areas like you have here that had me thinking I did something wrong, but it all came together lined up using the awls and scribes.
RV-9A: Under Construction. N161RV (Reserved)
RV-10: N959RV Completed 12/29/2013 SOLD 08/23/2016
"Donor Exempt" but donated through Dec. 2018