Depending on it's size, you should be able to get $200-$300 for the snake. If it's more than 500 grams, you're probably looking closer to the $300 range. Prices may vary in different parts of the country, but I would say if you want to dump it quickly, try selling it for $150 to $250, again depending on it's size.
Sorry to hear about the situation, good luck!
Jim Smith