Turning a 73 Dart into a 72

Today's update,reinstalled the seats,mocked up the shifter.Did not take any pics as I nearly destroyed My camera the other day.I keep leaving it in My pocket and for some reason it keeps turning on I don't really see how I could possibly activate the button while it's in My pocket? but twice now I've been working on the garage floor when I heard a crunching sound and realized I had just sat on the telescoping barrel of the lens assembly!Luckily both times I've been able to carefully realign it and it still works.yeah!
On another note who out there is running an aftermarket shifter with a cable ?the instructions for the B&M quicksilver shifter says to drill a 1-1/2" hole for the cable but there is no supplied grommet to seal the floor .Just wondering what others have done to keep any fumes etc. from entering though the whole in the floor .Figure I'll look at the hardware or auto-store for a suitable rubber plug to run the cable through.