In my recent quest to find schematics that I can use to build an explorable, virtual-reality model of Cats Lair, I found some fairly high-resolution scans posted by a user on DeviantArt. I’ve seen smaller versions linked to, here in the forum, but this guy says he got his stuff directly from Leonard Starr, back in the day…
https://curious4ever.deviantart.com/
No, I don’t mind if you mention my page and my connection to Leonard. Thank you for asking. I know many interesting stories about ThunderCats, many that have never been told before. I have interviewed Leonard several times about this show before he passed. And I have other rare ThunderCats items including an extremely rare video that has never been released.
Please keep me posted if your project gets off the ground.