I think the setting is the strong point of your adventure and I find the inspiration very original! Just a question since it's not stated in the adventure itself: were you thinking of specific classes and a particular level to play it with?
Probably 1st or second level to sell the point of low resources. Also for the classes mainly martial and some half casters but have most of the magic flavored as having extended access to recourses that would cause such an effect (like a med kit for healing or a flare gun for Guiding Bolt).
