RuneScape - Crystal bows that are ranged aren't at all bad
days hours remaining
Goliaths will require you to have had a good amount of quests completed and lots of arcade-style combat in large towers full of quest bosses. It's possible to find after you've completed your quests in general I'd say. To get the ring, there's an excellent free ring which you receive when you complete "A returning to the stone" (I believe that's what it's called).
It's located in TzHaar city, in the birthing pool. It's all the fremmenik attack rings' bonuses, as well as many very attractive reused teleports, as well as combat bonuses against Tzhaar. Or you could get the Berserker ring, which offers the strength bonus, or you can get the explorer's band, which includes alchemy spells that are free every day. You could purchase an Onyx Ring and make it more effective with the ability to mobilize armies. Go to Google if require more information.
Crystal bows that are ranged aren't at all bad but is not the right weapon for someone with your abilities and budget. You must at minimum, build a Royal Crossbow. I'm not sure how to make it since I don't have one, however I've been told that it's easy (and this is because the Royal Xbow is a tier 80 weapon).
If you're like me and cba to make the crossbow you can always purchase the Zaryte (60Mish) which is a weapon of tier 80, doesn't require ammo unlike the Crystal bow, and is degraded extremely slowly. The weapons of tier 90 include the Ascension crossbows, both worth 255Mish . To buy both you'd have to shell out 500M+.
Nex armours are excellent too, but they're definitely overkill for Slayer. I own Pernix and I play PvP and bossing with it only. I'm using it to camp in the ascension currently, however that's because I'm trying to become 99 Ranged this weekend. I have to earn as high as possible.
Want to learn more about OSRS gold at https://www.rsgoldfast.com