My front driver side turn signal wires burnt up?

So, my previous question I asked, was about the wiring schematics for my front blinkers because the wires burned up for some reason. Thank you by the way.

With all the wires, only three were burnt start to end but there's a lot of other ones that were surrounding those burnt wires so throughout out a lot of them are melted, stuck together and some spots have wires exposed. I started doing one wire at a time, checking it for damage and taping it up as I go. So, my question is; What do you suggest I do at this point?
Someone told me to just go to pick n pull and cut the wiring from another Mazda and just replace it. Sounds simple enough, I guess, but I'm not sure where and where I should cut. This has become such a big headache. And I'm not too sure what to do at this point?