Ballast containers for mega hab purchased

The Otterbox 3500 isn't made anymore, but luckily it's a fairly standard size/shape of drybox, so I was able to find an off brand equivalent. Three of them set me back $52 but a much appreciated $20 donation put a sizable dent in that.

This means work can finally continue on the mega hab! Once the ballast containers are attached I can add the heater pad (already bought) then the air inlet and tubing, then I suppose I'll have to figure out what to do about the opaque lid. A window most likely, unless I can find somebody with the transparent lid version to trade with.