My 1990 CVA Catalog says $536.95 for a finished Flintlock Rifle. I have an older cap lock by Jukar. The local ML shop said it wasn't worth more than $450.
$600 sounds fair but maybe a bit low. Especially on an older rare gun like yours. I sold one just like it about ten years ago for that.
Good Luck!
Walt
Been A few years I guess my memory of price was higher then it actually was,either way they was out of my reach back then while raising 3 kids.
I think it was probably mid to late 90's when I picked up mine.