How would I go about finding a fuel tank drain plug only, not the whole fuel tank, for a 17720.06 Omix-ADA Replacement Steel Gas Tank for Jeep CJ5 1955. I have a CJ5 from 1955 with this new tank on it without any drain plug. I have tried to buy pipe thread and regular threads and all kinds of things and nothing fits so I am looking for the real deal fuel tank drain plug. Please help so I can get my jeep rolling. Thanks for anyone with ideas.