No idea what the conversion rate is as I'm in US.
While it's true some snakes are in rough shape from any kind of re-homing deal, some are in great shape and truly were/are loved but for whatever circumstance, they have to be re-homed. I wouldn't let that deter you. Just check the snake out before buying obviously. Bring a white paper towel or rag and run the snake through it while you are checking it out. That would give you a quick check for mites. Of course you are still going to want to quarantine it and personally, I would spray its cage down with PAM anyways for an initial treatment.
