Well, it depends on what you are looking for out of vaping. Some people really want a powerful device and a lot of juice flowing through their system by DL. If you do go that route, I'd start out low with the nicotine, and watch out for signs of nic overdose versus cigarette quitting. I was gifted a sub-ohm and figured 12 mg was a reasonable start given how much I smoke(d). It wasn't. I can only subohm 6 m.g nicotine without coughing my branis out. I ended up switching to a 1.8 coil and did much better (Nautilus 2) though I like the 0.7 coils as well. I vape around 20 mg nic on that and even when chain vaping to start (I think many of us do that in the beginning, to deal with detoxing off tobacco), I was fine. So, be aware of that variable.
I'd definitely (if you can) get to a brick and mortar store to at least look at various demos, hold them, see them demonstrated, some places will even let you vape on them if it's possible to attach a disposable drip tip. If you can't, I might recommend getting your kit that you desire, but possibly also a smaller MTL backup/tryout tank, that is pretty inexpensive, like the Nautilus mini or another mini tank, it should still work on your crazy battery power provided you reduce the wattage a GREAT deal. Then you can try out different options without too much risk, though I'm not sure I *personally* would pull the trigger on that setup if you can only buy it from an overseas vendor. If you get one of the ones that the quality control guy was sleeping during assessment, it may be harder to get it replaced/warrantied and take a lot more time. I might start with something less powerful to start, even if it IS still capable of sub-ohming and you can still buy a secondary tank. There are lots of good options out there, and if you decide mega sub-ohming is for you, the Smokg will be around and only get cheaper...
Anna