That I understand.
I'm guess your are planning to build this one, dumb question, right?
Keep in mind standard lighting sizes as that will keep cost down and
get you up & running faster that DIY lighting.
Just a thought from someone doing 30 to life, mock up a cardboard
tank & stand and put it in that space. Let your wife see it and live with it
for a few days before you start your build.
Looking forward to seeing your build.