[Montclair Benz]

So, stripped the interior and chrome off the 280 and it is off to be soda blasted this week but I have a few questions:
I have found a hole which goes from below the brake master cylinder and comes out of the drivers' front wheel well. It had been plugged up before. Is this a drain hole or should it be plugged?

How do I get at the (broken) radio ariel which is on the passenger side front wing. I am hoping I really don't have to take the wing off!

The back of the car says "280SE" with the word "Automatic" below on the left hand side. "3.5" is on the right of the trunk. The auto cars I have seen in photos only say "280SE" on the left so do I need to fix this? The car is an auto.

Any idea where to get thick padding for the transmission tunnel covering or the tar mats which cover the floorpan?

Thanks!

Adrian