As far as gear, you can use LMW until lvl 51-54(i skipped the weapon quest) as the 09 company armor has better defenses than the LMW set and will get you to lvl 65 so you can wear meister.
Meanwhile, your aitan training center medals should be used to purchase the +7 Obsidian Honor pieces from the ATC Shop(next to the honor shops in regen). And this will get you to lvl 90 and you can start farming and crafting the heaven set.
Any money you get should probably go into purchasing a mount and buying accessories. Once you've got your mount and accessories, should put all money towards the heaven set.
I would skip over the 80 uni sets altogether now that overcoring is out for 90 heaven set.
But this is just my suggestion so you don't have to worry about buying gear until lvl 90.