When should I get attack?

Okay, I've got a level 77 zerker, and am wondering when I should get my attack to 70?

Here are my current stats:


I have around 165 Qp, hopefully getting Barrows gloves soon. I have Torso, Rune Defender, Dt and Lunar Dip. completed, Crystal Bow, and about 4M total value, around 1.5M cash.

I am going to be buying a Saradomin Sword soon, and I was wondering how high you think my Strength should be before I get 70 Attack.

Thanks for your time!

 

IMO i would get 80 strength then get 70 attack!

 

No point now, jagex new update has made it so you can't protect item in pvp worlds and your automaticly skulled, so might aswell keep 60 attack and just use d scimi....