I think the best weapon to stop at is the Concerto. Guns are cheap; I've seen clean 76's (2 above) for around 15m, and that's in the upper range. You would need about 98 att to beat your 94 IW until end game, when a 97 att would beat it.
Simplest approximation for determining DEX/ATT ratio:
Divide your total DEX by your total ATT (include the ATT pot you'll be training with)
For example, I have 454 DEX. My gun has 84 ATT, my cape add 3, my gloves add 11, and my bullets add 16. I use a Warrior Elixir when I'm training, which adds 12. That totals to 126 ATT.
454/126 = ~3.6. So at level 89 for my Outlaw, 3.6 DEX = 1 ATT. It's actually probably closer to 3.8 because of STR, but that's a minor difference.
Simplest approximation for determining DEX/ATT ratio:
Divide your total DEX by your total ATT (include the ATT pot you'll be training with)
For example, I have 454 DEX. My gun has 84 ATT, my cape add 3, my gloves add 11, and my bullets add 16. I use a Warrior Elixir when I'm training, which adds 12. That totals to 126 ATT.
454/126 = ~3.6. So at level 89 for my Outlaw, 3.6 DEX = 1 ATT. It's actually probably closer to 3.8 because of STR, but that's a minor difference.