I see the hana enclosure as potentially being like a chevy small block. Good platform for setting it up how you want. One compartment for power supply (battery) and another for everything else. Room for a proper connector, a location for a fire button, two menu buttons and room for a chip cradle for chip of choice and would be easy enough to make them with windows customized for a specific line of chips. They could be made with threaded lugs so removeable button hold down clamps, removeable chip cradle securing screws (main and charging chip) and battery sled mounting screws could be used. Thread the connector hole so a fatdaddyvapes 510 screws right into the case and you have a mod that can be completely stripped down by removing screws. No glue or epoxy. I'm sure a wiring harness with plug in connectors could be made so most, if not all, soldering could be eliminated. A proper diy mod kit.