Researching fuel line options, but.....

[T and S]

I have spent hours trying to figure this out....
I have a 250 6 cyl with a weber carb. I am wanting to run the fuel line from the fuel pump (stock) to the carb all in hard line (5/16). The weber carb does not have an internal fuel filter, just a small strainer in the inlet.
I kinda decided on a in-line anodized fuel filter with AN fittings. I have found all of the fittings I need to use except the one to adapt a steel hard line to a AN fitting....
I did find an adapter fitting that uses a nut and farrow, but it says for use with aluminum line only.
What would you guys do here ? I have spent several hours searching and looking at fittings, I think I am missing something......