Didn't plan on it taking 3 hours, but at least it's done!
The rear SVT-spec rear mount (closest to firewall) was a piece of cake to install.
The front SVT mount (closest to bumper) with HD inserts seemed to take forever! The original mount came off easily. When I compared the mounting bolt locations, I noticed the original (1996) was a little bit wider. I used a drill to make the mounting holes on the new SVT mount wider. I also had to hammer out the pre-mounted bolts on the SVT mount and re-use the bolts from the original mount (as the nuts were WELDED to the underside of the mounting platform). I spent the majority of my time struggling to get the pass-through bolt properly threaded.
I was fortunate to have access to a drive-on vehicle lift. I couldn't have imagined crawling around on my back for 3 hours!
End result? My '96 SE MTX (with 96K miles) had been requiring a bit of force to get it into gear at times -- not any more! The new mounts seem to have taken up a LOT of slack. I'm pleased.