As far as how to cull, I've read in a few 'research animal protocall' papers that talk about humane culling. Cleanly breaking the neck, gassing with cO2 or euthenasia are scientifically the only proven "painless" methods for culling any verterbrate. And snakes are not good to gas because of how long they can hold their breath for. I've read that freezing them is supposed to be cruel and inhumane because no one has any idea if they can feel it.
Regarding the kinked albinos, are they born kinked? I really like the look of them, but the idea of buying one as a baby only to have it develop a kink sounds awful.