I know that by the time you reach Archades you should be at least level 40 with everyone, maybe a little higher, if that's the path you're going. And all the LP you get from now until Archades you should use it on Augments. (While saving a bit for some new equipment you'll be getting on the way.) Master the Augments section with everyone as soon as you can.

Remember, you can steal Embroidered Tippets very easily from the Coeurls in the Tchita Uplands when you get there (Equiping the Thief's Cuffs will obviously make it easier though). Use the Tippets and farm the Malboros who spawn near the ruined temples.

You seem to be on the right track through.