Ugh. Kind of painful to watch. They could have saved so many hours by simply getting a service manual for the car or just visiting one of the Viper websites for some friendly tech tips.
Simple things like...1) take out the shifter assembly first, so you can more easily lower the trans in order to access some of the unreachable top trans-to-bellhousing bolts. 2) Get some three-foot-long 3/8 extensions to reach those top bolts from behind the transmission since there is no way to reach them from the sides as there is only about one inch of clearance between the trans tunnel and the sides of the trans, 3) the bell housing always stays on the block when you pull a Viper transmission. (two foot wide bellhousing doesn't fit into 15" trans tunnel). 4) Have a bunch of hands ready to hold that transmission on the jack because it is V-shaped underneath and will roll right off your trans jack platform. - you can see this almost happened in the video and the guy grabs it just as it was rotating. Very scary - that is one heavy hunk of metal.
I just replaced the slave cylinder/throwout bearing in my 93 Viper in November 2021 and that was a fun job to do by myself. See some photos here: The Original Project Pit Viper back on the road
Should be fun to watch them try to fit that 6.2 in there. The V10 was basically designed around the 360 smallblock dimensional architecture with two additional cylinders so it is a narrower powerplant than the 6.2 hemi. Those frame rails are not forgiving. I sure hope this isn't gonna become one of those home improvement shows where they rip out the load-bearing walls for an open floorplan.
I wonder how it's gonna run when they're done. It sure is going to sound different.