Help with dark build

[Elllll]

I have a couple questions for starting a serious pvp character:

1: How should I distribute my stats for a dark build?
2: Best rings etc for pvp?
3: Soul level for decent pvp?

4:Can i invade ng players with an ng+ save?
5: Apart from astora's GS, Dark LKS Chaos Dagger and LK Shield, what equipment and wepaons are the most useful?

6: Should I dark build from the get-go or respec when I have the dark gem etc?

[76561198341689784]

Go pyro for early dark stats, as well as point efficiancy. Best rings for pvp is chloranthy +3, prisoner's chain, obscuring ring, and silvercat ring.
Now, if you want to complete your build, go to 120 and invade the ringed city, do 40/40 int faith, 39 vigor, 40 endurance and whaterver physical stats you need for your weapons. Never go above the minimum requitements for str and dex. Plenty of action there. Now sl70 is also a good sl for dark builds, as that point you'll have something like 30/30 int faith, close to if not 33 vigor and something like 20~ endurance.
Yeah you can invade regardless of NG as long as they are within SL and weapon upgrade level.
Poise, please, get SOME poise. The astora ultra gteatsword will thank you when you can trade with normal greatswords.
Yes, definitely do dark from the get go, but because you started pyro it's technically fire first, witch is also a good thing to have, some FIRE DABLAGE and if you need to refine your points later on you can.

[76561198806986604]

SL 20 +2, 30 +3, 40 +4 etc. Don't go dark until lvl 80

FAP3, prisoner's chain, Chlor3 or Havels3, Lloyd shield swap to Sun princess after 1st hit.

Dont go 40int/40faith if you dont plan on doing spells. 30/30 caps you out on damage as far as weapon scaling goes.

Pyro start is optimal

Lothric SS, 4Prong Plow, Claymore, HCGS, Man Serpent Hatchet, Mace, Twin Axes, Murky Hand Scythe, Mail Breaker, Corvian Scythe, Astora/Zwei, Greatsword and Partisan are what I like.

Dark Cathedral GS, Lightning Lothrics shield, Crys/Simp Lothric shield, BK shield