Ah yes. The ever-growing wishlist. But for now I'm fine. Quite happy with my purchase this time. Still need the RBA tho. The SS coils are really siphoning my batteries and this is spanking brand new LG HG2 I've got
But I'll guess your Mjolnir of a mod can handle it well than my phallic D2. 
You and me both buddy. Th only tea juice right now is Jazzy Bobba but its more like a chai tea, still good tho.
Would help if we knew what your budget is

Either Subox mini or evic mini. You probably could get an D2 with a subtank mini if you looked around with 300 but chances are slim. Try searching paktam vapor movement on FB.
On 4ml full how long does it last with that coil head? Still using the .5 ohm and it took me 30min with 0mg juice. Chain vaping of course.