Forgive the zombie thread, but I searched "laminated archtop panels" and this came up.
I've been a member for years, but haven't checked the site in a while. I've started making my own laminated archtop panels. If you are still interested, you can contact me by PM.
Here's are some links to pictures:
Panels have lying around: https://i.imgur.com/fYC09rC.jpg
A Starcaster shaped (offset waist) bass: https://i.imgur.com/raWOvSS.jpg
Two extra large (18.5" lower bout) basses - the BassVI: https://i.imgur.com/zfWNrBD.jpg and the Harlequin: https://i.imgur.com/1Pgf3ug.jpg
I also have a generic mold to make symmetrical guitar sized archtops like Gretsches, and ES Types, with or without cutaways.