can any high end monk advice me on which gears should i upgrade first?
i can solo act2 well but got slaughtered in act3.

you should look for items with cold + allres , should be 90+ at least per item

What to improve for act 3 inferno?

The resists are imo okayish, still need to upgrade my shoulders/pants + bracers

But that's about all I guess.

ias and critdmg/chance.other stats pretty decent.

for dual-wild monks, should i get a very high dps main hand and a fast off hand with add like loh and crit damage?

No. Both weapons must be fast. Get crit.

Both have to be fast and high dps and high loh with crit dmg and Dex

Gl

Attack speed? 1,58 is ehhh
Better shield 17% on a shield is :/

I farm act III pretty fast with about the same stats
Just 5k more hp 1.99 as 700 loh 30% block and 5k more dps

I started using a different build this time around.

Instead of having only 1 mantra, I put two in my skill bar. MoH and MoC and switch between the two depending on the situation. I found is pretty useful and Transcendence helps a bit too.

idk how to punch out more though. i got 9 on gloves and 6 and 6 on rings. i could try to find an ammy with loh/ias/resis/dex but won't be cheap
i guess saving for a decent stormshield would be the best option meh.