You want the easiest way??
Spice the b&m lever on the trans to the old lever that goes to the column.
Remove the lever on the column.
Cut the lump off the column.
( there used to be smooth sleeve , like from a late floor shift G body but it is NLA )
This way all the ign lock outs, rev lamp PN info to pcm, lock in park with key out , cant remove key in gear,,,,,,all will work as before.
Before someone says that is stupid, GM did it that way from 70 to 77 and it worked great.
When my car was a floor shift auto, i did it that way with the G body column part.
Worked flawlessly.
Also, if your caprice happens to be a 9C1, it won't have the inhibit relay . If you choose to run wires to the shift for a park neutral safety you will need heavy gauge wire or a relay.
If you do it the way I am suggesting,,,,,, you dont have to wire anything because it all stsys stock