You are right about one thing, there are many Caravelle toys. I just cataloged my CIJ Carravelles and found I have 3 quite different ones.
Now, as for Lone Star. That is a great guess, but alas, it is wrong. I don't think Lone Star did an Air France variant, only SAS decals/transfers were supplied with the unfinished boxed toy. But of course it could have been finished by someone using AF markings
The only Lone Star Caravelle I have was factory finished, and is shown here below on the right along side the mystery Caravelle.
