It all depends on where you are going with the car. Bugsy my '68 has a 1098 Engine, Miata Seats, a Bugeye Bonnet and a Rollbar along with a < $50 BRG Rustoleum Paint Job. I decided a long time ago that Bugsy would never be a Concours Restoration but would remain a fun Driver. Rust with these cars is an ongoing problem that cannot be fixed unless you go down to bare metal and that will expose other issues to worry about. Driving is the most important goal for me and keeping Bugsy running with all of the little idiosynchracies inherent to this LBC.
If outer rockers look good I'd consider leaving as-is and put that job on the long term projects list. And that also depends on investment you are planning in a paint job. Again Bugsy is a driver and the Rustoleum Paint Job makes it easy to fix and correct as I have time. OTOH if you are budgeting for a $1,000 paint job at a commercial shop better to fix as many rust problems as you can before expensive paint goes on.
Again these cars are open to interpretation and modifications. Do what feels right to you and within your budget. Again YMMV and others on the list have different opinions. For me, structurally sound, engine and braking systems working as designed without issues, good rubbber, paint becomes an after thought.Driving is the most important thing and you want this completed before Summer and Fall/ actually Fall and Winter for you goes away.