I would say use the h0m3 d3pot husky brand totes, but they switched the color of the lids from black to non light proof red recently.
Seems you would have to paint or cover it anyway, I say go with the yellow top commander totes from l0w3s. Then, if you upgrade your containers, get the matching commander 5 gallon square buckets. They are pretty nice for RDWC systems.