@Vape Fan I’ll be using a Voopoo Drag as soon as I get it in from Breazy. If anything I’ll also be using it on a Pulse 80 Squonk by Vandy if I decide to go that route as well
You might want to think about a dual battery squonker for a dual coil RDA. You can run a dual coil RDA on a single battery squonker but even with my 21700 on the pulse X it eats through the battery life like nothing with a dual coil. Generally you want a battery per coil.
Or you could pick up a single coil RDA. I'd suggest the Hermetic by SMM/Blitz. This vid is what convinced me to buy it and everything he says is spot on! Flavor is sooo good. Better than any other RDAs I have of this size (and I have like 10 good flavor chasing ones).
I think a nice big 510 steel block to build on is helpful and a coil brush as well. There's one on Amazon that's $5 and it's also one of those 5 in 1 coil rods that tapers and steps down to diff coil IDs. For the 510 block I got the nice big stainless steel one by coil father on fasttech. Something nice and heavy like that with about that height would be good.
I also picked up some fiskar scissors on Amazon ($8 on sale ATM.. very fancy high end brand and super sharp) and some nice pointy ceramic tweezers. I haven't got the tweezers yet but they look small enough to be able to be able to intricate coil work which is what I was looking for. The default ones are good for pinching contact coils but that's about it. Here's a link:
https://www.amazon.com/gp/aw/d/B0754K9CNT/ref=sxts_1_a_it?ie=UTF8&qid=1542119428&sr=1
Also I'd pick up a few Ssung 20S' (true 30A 2000mAh battery) and build for heat flux and surface area over JUST resistance. You just take the heat flux and multiply it by the wattage you're running at. For a mech mod use the battery section (input your battery settings via the custom add section if need be) and out in your resistance. Then scroll to the bottom to get the wattage and use that one to get your heat flux. I like around 280-320. Average is 150-250.