Well after much debating with myself I decided to try and do a DoT build, I tried all sorts of silly ideas and ways of making the build work, ultimately it came down to remembering how I played the WD at launch (once at 60 and in inferno), this allowed me to then dive into the creation of this build with a little more insight than usual.
Now there will be more than one build here and the reason is because not everyone uses the same item builds and certain ways of running this build are better with different skills / items depending on the players skill level and items.
Now if I'm running it MP10 solo I can take several hits and my kiting skills are pretty decent for those moments when I need to move, if you are the same then this is the build.
The build changes depending on how much you struggle, first things first, if you are bad at kiting you will want some pets in there, this doesn't mean remove GotD it means remove Mass Confusion and pop in Dogs with Life Link, if that's not enough drop GI for BM as almost every bit of damage you do is poison.
If somehow you are still struggling but your mana is perfectly fine to spam Bats then drop BR for JF as well, this way you will be running -20% attack damage from enemies, -15% incoming damage from JF -10% from your dogs plus whatever your armour and all resists give you.
Do not remove SH and GF these 2 are fantastic damage boosters for your build and will allow you to dump a high hitting DoT on enemies when you have 5 of each (or as much as you can safely get).
Plague Bats are insane, I don't know if they were intended to be how they are (though if they buffed them I'd love Blizzard) I can not for the life in me actually work out the damage they are dealing, it is not as much as ZBs so don't expect it too, what you can expect it to do is allow you to kite and stack other damage while still dealing damage, the AoE is good and the range is ok.
The general play style is to get SH stacks then LS them, use GotD drop MC (if it's elites) and start spamming Bats, keep an eye on GotD because it will let you know when you need to restack LS and GotD again. Over the 8 seconds you aren't dealing the 270% damage per attack from Bats (which is APS dependent so 2handers hit for bigger numbers but don't stack as much) the damage shows per tick which like life regen is twice per second (I think) and it's hard to track the damage with 3 DoTs on them.
Anyway 270% plus the 360% and 320% from LS and GotD adds up quite well, the build works on lower MP levels for fast farming however GotD can be swapped out for Slow Burn or AC, I prefer Slow Burn due to the damage it deals.
This really isn't one for the faint hearted guys if you can't take a few hits you will struggle with it.
Anyway best of luck and hope this gives some amusement.