[Brian Duff]

John,
When glueing aluminum for structural repairs, use epoxy glue. There are specific glues available for each type of aluminum. Google ' Aluminum Epoxy'

Depending on the thickness of the mast and the diameter of the fasteners , fine thread fasteners can make sense. Rivets certainly do not, except for very thin masts used near-shore(dingys and small sport boats). ( Oh, rivets do make sense for high profit margin, low cost production spar building using semi skilled labor) << Read as heavily opinionated<<<

If the rig has been well tuned, the terminals replaced and the rod reheaded - all of this by an expirienced shop, and the installation has fair leads throughout - then the rigging is probably fine. If any of those conditions are in doubt - replace it. If the lead are not fair - redesign. The design of the rig has everything to do with weather you can switch to wire or must stay with rod- or go to fibers.

With more info we can help you decide.