Nothing special, but all the normal FARs apply. If you are doing it for pay you have to have a commercial certificate. I used to do a lot of maintenance ferries, the main thing there was to check that the mechanics did whatever they were supposed to have done before they leave for the day and you are stranded at the airport, and to make sure the thing is safe before leaving the pattern if at all possible, ie. make sure a quick return is especially possible for these aircraft since they are fresh from the shop. Be careful with ferries in unfamiliar aircraft- you should know all there is to know about the model and insist on seeing the records if there is any doubt about the mx history. Do an extra cautious preflight if there has been much time since the airplane last flew, repairs were done, or there is any doubt about how the airplane was last used. Also, you may want to think about insurance implications- are you insured flying this airplane.