You might want to switch over to nicopp line. It's much easier to bend and flare. I've replace both rear lines with continuous runs of nicopp. The best part is it will never rust out again.
Bulk:
https://www.amazon.com/Nickel-Copper.../dp/B00A02C9H0
Or by the piece:
https://www.jegs.com/p/JEGS/JEGS-NiC...11534/10002/-1