Automatic transmission temperature sensor the master debate...

I'm rebuilding the 727 for my Power Wagon and would like a automatic transmission temperature sensor...
I have a brand new pan and can put the sensor in the pan but I just see the potential for leaking. Also I don't really want the wires and stuff coming off the pan itself if I don't have to.. I was thinking of a inline temperature sensor on the outgoing line to the cooler? I realize the pan would be more of a neutral temperature but the one coming out of the torque converter would be the peak temperature. If I was rich I would think about putting one coming out and one going in also seeing how efficient my cooling system would be along with just taking the averages what would probably be in the pan?...
Any experience would be appreciated...