I did mine, from the bottom. It only took an hour or so. My 440 with headers, steering box, starter, trans, etc, came straight up and into place. No scratches!
4 bolts for the K frame, trans cross member and it is in.
With the back wheels up on some ramps, for height, I jacked the front of the car high enough that I was able to slide the engine and trans under the car. Then I let the car down onto jack stands, and used a cherry picker to lift the engine, with a floor jack under the tail shaft. I had no hood on, so this was easy.
You do not have to remove the top of the engine, you can use the alternator bolt holes in the left front/right rear of the heads, or a carb lifting plate.
I chose this method because I did not want to lay under the car trying to bolt up the trans & clutch and try to wrestle in the starter, steering box, exhaust, etc.
Think about it, the factory didn’t have some guy leaning over the fender installing the components, it was done in seconds, from the bottom.