You dont need repair oil to skill up, just use Deus ex automata.

I would personally recomend skilling up to armor piercer for ranged before heading to abyssea since it ignores defense its a solid dd option, for melee just get canibal blade.

For magic you really do wanna keep it caped but theres an easy way for that, use the whm and have it spam cursna in certain zones.

You really wont be dding much with ve/ss till youi get burts or are really lucky and find a non retarded exp alliance that doesnt mind the occasional ruby light