My water valve control cable (55907-28010) is seized up. I cant adjust the heat.

I tried wiggling the cable loose with teflon spray and pliers but accidentally put a kink in the cable and made it even worse.

Now the only way to turn on the heat is to reach under the front bumper and pull the tiny switch 'manually' (see picture 4).

Obviously 55907-28010 is discontinued. Has anyone found a similar cable which can be purchased online in bulk and cut to length? Sadly I dont own a parts van.