Not a recommnedation but the companies that make lines include.
Fine lines
Classic tube?
Right stuff
In-line
I can't say how exact any of them are. For the long line on my '67 it took me 3 tries to get one that fit like the original....
You know who might know? Scott Smith Harms - he does a lot of points type carb restoration.
Worst case, find a good original and we can copy it.