Tamid, that's great mate!
This really caught my eye , as I am a Fiddle player.
I have a couple of nice old spare empty cases, one has a nice alligator type skin on it. Hmmmm.....

And you're right you can get nice modern cases with nice lock up for not much money...Some come with zipper type outer soft case too..A great platform to make a custom case on the cheap & have some fun.
And you can move up to a Viola case for your big bores

Check how sturdily the handle is attached though,might need beefing up after gutting out...fiddles are pretty light.
Cheers
Franc