old fuel lines and brake lines -Replacement Where and How? Tech tips please!

I bought a set of steel 3/8" fuel line from the internet. They were longer than my 5'9" height. They were only flared on one side so I got a Harbor Freight flare kit and an extra cutter. I have bent the steel lines before with the hand held bending thingy. It wasn't bad 12 years ago, just allot of effort. I went out like Rusty said and bought the 3/16" sectional pieces from the local parts store for brake lights. It has been cold, windy, and wet so no progress in the past several days.