The squirrels got me...

As far as I can tell, only one of the fuel injectors wires appears to be cut from the damage. Dealership quoted me almost $2k to replace the entire engine wiring harness, but I'm wondering if it's only the one ignition wire, is it possible to repair just the one wire without the entire harness? I consider myself pretty handy, so if this is a simple splice I think this is in my realm of capabilities. Curious on everyone's thoughts and any helpful tips/guides.