Restoration Questions

[placo1]

I know this has been discussed in other threads but I was hoping to get some details regarding how to properly restore an automobile.

My goal is to bring the car to as close to new condition WITHOUT DEVALUING the car. In other words if a body panel has a small chip or ding, I wouldn't replace it or paint it due to originality.

But what about the following:

1. When a minor part of the car (Such as a door sill, rubber brake/gas pedals etc.) is worn do you:
A) Replace it with a new part as long as parts are available.
B) Leave it as is.
C) Try to repair it.

2. If the seats have wear on them do you
A) Replace the covers and padding?
B) Do your best to revive them?

3. When replacing components in the engine such as tubing, ductwork etc do you
A) Replace it with an OEM updated better part?
B) Replace it with the original part even though it's not as good?

Answer these questions without considering the cost involved. I'm really trying to find out the "proper procedures" rather than save money.

I know a bunch of you have some very classich MB's and would love to hear your experiences as well.

Thanks everyone for sharing your knowledge.