I did get a Mitre Guage safety handle with the Mark V which I didn't get with my Mark VII and I also acquired a flexshaft attachment with the Mark V which I previously did not know they even had. I decided to night to clean up the mitre handle and the flexshaft so that I could start using them with the Mark VII. They were both badly oxidized but I figured I could clean them up with a little elbow grease. I think they came out awesome and now look almost new again. The flexshaft works perfectly and the mitre handle slides nicely into my Mark VII table.
The only problem with the safety handle is that there seems to be a spring missing inside the handle that keeps the hold down pushed up until you squeeze the handle. If anyone knows if this is true or not I would appreciate confirmation of that. I also have to get a couple of small flathead screws for the handle but those I can get at the hardware store.
Here is the Mitre Guage Handle
And here is the before of the flexshaft
And the after cleaning and polishing