Have you tried posting a free "want to buy" ad on TractorHouse..?? There are a lot of salvage yards that sell parts through that site that don't show, or list there. Open this link
https://www.tractorhouse.com/ then look far right top of page and open. You'll need to register, give contact info, describe part you're looking for along with the OEM part number. I've gotten quite a few hard to find parts this way.
I've had them contact me by phone in as little as an hour, or up to 36 hours later. I learned to give it the 36 hours as prices and shipping can differ a lot. But pretty sure they have a satisfaction guarantee on the parts. I've been well satisfied with what I've gotten. Only takes about 10 minutes to register and fill out the form. Sure better than playing phone tag.