today i continued putting 707 in. i installed 708 to hold the bottom skin in place and got the bottom of 707 riveted in place. came out ok, not great but it will do. i had to modify one of the bucking bars i have to work a little better, and that should help on the other side. my arms are just a little bit on the thick side, so getting into this area was not easy. i'll have to get pam out here to help in the future.