One of my injector return lines (one of the ones running between injectors) has sprung a leak and pees fuel on the head. The leak is right at the injector. I'm pretty sure of how to fix it, but I just want to make sure before I wreck something:

Can I cut the bad section off and push the line back on? (there's definitely enough slack)

If I must replace the line, can I get the correct diameter and type of hose at the parts store or is it a special order item?

I realize I sound like a cheapskate, but this is my only car and I'm pretty well broke. Thanks in advance to any advice that can be offered!

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1983 300SD
Rusty, Loud and Proud