Send me an email or PM of where you live and I can refer you to one of many cuemakers or repairmen who do superb leather wrap work who have long been customers of mine.
My elephant leathers are sourced legally from the Zimbabwe government. They cull and manage their herds and use the funds generated from selling the hides to maintain their wildlife. Everything is regulated and legal including importation into the USA which is regulated by USA Customs and Fish and Game. The prices for the hides has increased dramatically over the last few years and there is less of it available for importation into the USA.
People interested in educating themselves can spend a few hours reading on the Zimbabwe government website about the matter. There are a few other countries in southern Africa that have elephants too but I am not aware of hides being sourced from them.
I've never heard of, seen or been offered black market elephant leather. People who think the animals are outright slaughtered for their hides in Zimbabwe are just unaware and/or ignorant.