if you don't have access to world boss gear....You want as much patk as possible, boss and mob def in kb is pretty insane. Heurtons or shints or kulech black magic legs(codex), leather gloves of vigilance; nice crit, lots of patk and that dex is a lot of accuracy. Tinc or second kulech earring. Belt like mikk said is optional swap. Keep the lower crit and patk with paicha(might want to t7 to make up some more of the difference, t8 if you already t7), can also use Tinc Belt for a good chunk of hp def and patk, more dex as well iirc(game down now can't check)
Ideally you'd want to eventually get world boss gear(see proof of legend vendor dude in varanas) LOTS more crit than the above set up. Dex on belt but no innate raw patk, but lots of def and hp, stack at least 4 str.patk on this piece 5 if you can t7 or t

do the same with the pants, use orange remains/eternity stats if you can get those as well(pricey as stats go cheaper for wars wahaha). Using the shoulders and completing this set is also better than 4 piece raid set.
if you are using tosh gear and new codex set you can easily keep at least a 70% crit rate up with the cheaper patk setup. And anyways these crit rates at the 68-72% crit range of the spectrum there isn't huge difference between them. The only reason to sacrifice ANY patk to go higher is for offhand damage for w/r(white damage makes up 25-35% of your damage) at the top of your scrut numbers. My current offhand sucks balls so my white damage is about 25%(still top), once i replace it my white damage will go up considerably. OP is w/wd so going much beyond 72% in maxed 75 content isn't necessary. 72% should keep you in the clear for 77 content.