I have the EGT probe in and will be making an 8 hr trip to Tennessee this Friday so I'll be able to get some readings and normal running temperature.  I did end up putting it in the manifold as that was the most common spot in all the how-to youtube videos I saw.  Plus, its easily accessible from below but should be safe.
Here's some pics.  I used a hose clamp to help keep it in place, although the screw-in plug did seem to hold it so its just a precaution.  Notice the drill bit tip I melted and the tap I destroyed. The  dewault bit, however, did the business.
 
 
