I'm an Occupational Therapist and take my equipment with me into poeple's homes. I have these old amazingly skookum boxes intended to equalize to negative pressure and then maintain the vacuum for air travel into combat zones.
I'm not a fan of the ammo can bagger but these strike me as SO ugly they may actually come full circle and be charming.
I will post daytime photos tomorrow
Just keep in mind I am an old army mechanic and try to do my builds as cheap as possible, junkyards, spare parts, etc