need some advice, running 3/8" fuel line, how to run, what to use

I've shopped around, I'm $120 plus shipping to get 3/8 stainless. I can get about 16' of 6 an for the same price. Yes, I have to buy a few fittings, but the way I see it, it's worth it. I already mangled one stainless line. If I need to modify the set up I can do it easily. A stainless line would have to be modified with an expensive tool and buy fittings too.

Good plan. Yes - AN fittings are more expensive. But as you said, you’ve got flexibility in modifications and they are sturdy, safe and should outlast the vehicle.

For ptfe fittings, I’d watch some YouTube videos on how to affix them. Kind of a pain in the *** but not bad.

At Summits pricing I figure you can get 16”, 4 fittings shipped (over $100 no shipping cost in US) around 150 or less USD. Not sure on shipping to Canada

Oh - the PFTE hose isn’t as flexible as old rubber hose of course. So you just have to be patient and mock up how you want to run it

Good luck!