Replacement body parts

Best way i know of is to get it at a wrecking yard you can often get them at a reasonable price ..also if there isnt one in your area most of them have online services now theres uasually a phone number listed on their websites you can usually call and ask if they have the part youre looking for and most of them these days will ship it to you ..thats the cheapest and best way to get what youre looking for good luck hope this helps

You might try https://www.car-part.com/ Enter the information and then see if there are any yards that show them having one around you. Be advised that many of the DIY yards are not on there so if you have a you-pull-it type yard you will need to check with them directly. What is the problem with the door you have?