Depending on what panels you are after, check all of the parts suppliers, NPD, Ames, Classic, Year One etc. Maybe call them and ask rather than a website. I was looking for door panels for my TATA in the fall of '21. Every online source said back ordered. I started to call, got ahold of a guy at NPD that thought they may have had something that was not shown. He physically found one pair sitting on the shelf which I promptly ordered. Other than that (at that time anyway) everyone including Legendary was telling me 6-8 months minimum.
I inadvertently ordered the wrong pair of door panels when I was restoring my 77. As most parts I buy, they sat in the box for months before I even opened them. When the time came and I realized I had made a mistake I called Legendary and they replaced them with the correct part with no problem. I think I paid the shipping. This left a great impression on me as to their customer service.