1/2 hr. trying a solution for Rib 9 suggested by Peter in Australia (building a 4) that he heard right from the people that actually build the planes in South Africa.

Put the rib in at an angle (20-30-ish degrees) such that the holes at the end line up enough to put cleco's in. Then pull the rib into line and put cleco's through the spar strengthener on the other side (you have to use some degree of effort to pull it and cleco the holes).

And... voila!  It works!  Of course I'll have to do it again with the nose rib in place, but the idea works.  When I finally get to riveting it I'm guessing the best way will be to remove only one cleco at a time to rivet.