All captive bred colonies have to start somewhere. If you really want to work with them, I would say to definitely consider LTC or WC individuals to start a captive breeding colony. I would say to preferentially choose and LTC individual over WC, as they have usually been treated for parasites, and have a better chance to be in good health. You just have to realize the expenses involved in the care and husbandry of WC animals would be a bit higher than with most captive bred animals, as it would be a good idea to fairly regularly take them to a reliable herp vet until you're sure they are clean of parasites and other possible infections. I would say you should go for it if you are pretty interested in the species.

Out of curiosity, what is the species are you referring to?