Do you want it to be difficult or easy? For the best chance at having an animal with longevity, you'd have to start with one born in captivity. Jacksons will need to be around 4 or 5 months old to be really solid. Since you're interested in the Fischers, I'd recommend trying to get one of the youngsters FLChams has, if any are still for sale. The level of care and maintenance will be about the same for either species.