Best place to put Temp probe
Why not just get a brass "T" that has a 1/8 pipe thread male to screw into where the current sensor is ( assuming the sensor is the same thread as a v8) I think it is and then the other two off the tee female threads and put both your sensors in the same spot? It is done all the time with oil pressure sensors and works just fine. You can get the t,s at and automotive or hardware store, fairly common.