Unless it is bleeding he will be fine. You did the right thing with the moist paper towel. Just make sure its not covering his air hole. Let him be just check on him from time to time without startling him and he should hatch with no problem.
Watch for bleeding and shrink wrapping. You still have plenty of time. Goslings take 24-48 hrs before coming out completely. Try not to panic & rush things by helping too early thats when things can go wrong very quickly
Thank you. I think the little guy is early, his hatch date was tomorrow