A sagged spring would create negative camber, not positive.
True, I confess to not reading the question properly.
However, I would still install new springs before making any adjustments.
I've said it many times on here and I'll say it again. Nearly all pagodas I see for the first time have sagged springs and to attempt to make any adjustments to the suspension with sagged springs is, in my humble opinion, a mistake.
Obviously one could remove the spring and test it with a spring rate tester but if you have one of those then you probably don't need my advice!