Is a bit hard to define, since i used my XL2; and the only thing i paid was the food and beverage; plus did you count only the materials/grip things but not the pay for workers (crew/cast)?
It cost me a couple weekends I'll never get back, hours of editing trying to decide how to make this work and many sleepless nights thinking should I enter this thing or not.
$25 for everything. Hoping to stay under this time I always seem to go over by $2 or $3 times are rough and budgeting is important these days. That is half a tank of gas...LOL