[Cichard]

First you always want to be Brd>archer. equiping the job crystal gives you bunch of base stats and increases your damage. If you buy an Ilvl70 weapon it should be ok. though I also sell accounts so i do the story and get ilvl 90 weapons for best result.
the mobs past the boss are ok there are a couple ranged mobs you would have to skip. i was thinking this as well havent tried it out if its more gil/hour or not. since they are spread out much farther. and you would need to skip at least 2 pulls i think.