gonna breed mice..good idea?

[AlexCrazy]

hi.. im planing on getting a snake [don't know what but maybe a king or garter-(black one with blue stripes)] and my country dosent have any snake breeders or sellers (I called all the pet stores and aquariums in the freaking country).. An aquarium guy whas the best i found but never gave me much hope. soo im gonna travel to Brazil the 21 and if i don't find one there ill import from USA. So.. getting to the point.. i not sure if to start breeding the white mice now all ready.. or not.. :S and it would be nice if someone who does can give me hands on advice. also i want to live feed my snake.. [ i think its cooler and more natural(plus my mom wont want mice in the freezer)] please.. any opinion will be appreciated.. harsh or not!