General

Is my Damage Range Average for a Mechanic

My damage range is 10120-11906 on mount with no mw
Im lv 143

My equips:
11/10/16/17 zhelm
Pot: 6%dex
lv80 overall 6str 12dex
Pot:3%dex
3%dex cape
6atk 3%dex smgs
12atk mon 5/5/5/5
4%dex shoe
evo ring lv17 ii
4%dex earrings
agile tiger talon 2 w.a 1dex
3 zrings. (soon to get better rings)
im getting my blood mask and glasses and crit ring soon.
And my weapon
89atk concerto
Pot: 9%atk
Larson belt
7atk engine and rest clean pure gold equips
lv 10 bof
lv20 be
77str base+51str added=128str
660dex+210added dex=870dex
So is my range alright?
If not, tell me what to upgrade. Ty =D