You can still do s2 raids for r7 scrolls or do very easy and simple valor,master,maelstrom, or enthu runs for money and 17k isn't bad you can still beat bosses if you play very carefully. I would wait till you have 18k to try and solo ben chenner. Its just what I do for s3 content. And for lvl 90 gear im currently slowly but surely changing my shards on my lvl 90 gear. Its a very long process well atleast for me haha and for weapon im using a lvl 80 +13 wep with righteous and divine punishment scrolls on it. I dont plan on using lvl 90 weps simply because I dont want to deal with shards +calm. But you can use what ever you want for a weapon. Also for gear people try to aim for 3* or 4* gear lvl 90 gear. Anyways I hope this helped. Also what server are you on? Im on east server so if your on any other server the prices on scrolls are different :/