How To Handle Reverse Coolant Manifold Temp Sensor

I checked and all the reverse coolant manifolds (Rocky Mtn Westy, SmallCar, Tom Shiels, etc.) have the temperature sensor in the same place, which leads to a problem connecting the Subaru intake wire harness back up to it. As you can see in the photo, mine is at least 6" short.  I figure there are 3 options to resolve this:

1. Get both a male & a female 3 pin connector, more wires, and make a pluggable extension.
2. Cut off the end, extend it with similar gauge wire to make it reach
3. Peel back the Subaru harness, stretch the wires for the sensor over and hope they reach.

I'm opting for #2, as recommended by RMW.
#1 seems about the same amount of work, but I'd have to source the connectors.  #3 seems like a lot of work for something that may not even fit after it is done, or maybe it will fit, but will be so tight, it will suck to work with.  So, #2 it is.