Ive built several racks so far, Im on a budget too I can help you if you answer me these questions 3

1) What size of snakes do you want this for
2) How many snakes do you want this to hold
3) What is your budget


I would recommend using the 2 size sterilite tubs that are approx 12 and 28 quarts, 12's are small enough for hatchling up to 600 grams, and the 28 are good up until nearly adulthood (3 foot snake, etc)