Not reading through all 5 pages (sorry), my 2 cents - iStick 50W kit, Nautilus 5ml tank with the hollowed accessry tank and the Subtank Mini. About 150USD alltogether, the spares you can get cheap on
fasttech.
A friend of mine just received this exact combo - he's in vape heaven. I tried all that too. I'm impressed. The iStick 50W is smaller as it seems, it feels sturdy and the battery capacity..man.. he's a heavy, and I mean HEAVY chainvaper, he gets 2 full days out of it.
If you go for this, your'e gonna be good.
Thanks,
R