Looks great totter!
I love to be able to use common items as a starting point for builds. The
sameless plug
>>510 juicebox that I'm building is using a standard battery box (the one that 18650's come in) and it fits a 6ml bottle and 18650 perfectly. Mine's still a little rough looking, but by the time I'm done with revisions it will eventually look like a professional mod.
You selected a very good case for yours

and if you were to peal the stickers off and apply a nice paint job or your own sicker cover, nobody would know it's not a high dollar commercial mod...again...
Can we get some pics of the guts?