Mercedes Benz repair: Head light lens, and throttle knob on dash, metro atlanta ga, light lens

Question
I have a 1984 300D European [NOT A 300TD]
Will any other year/type head light lens fit?
Where can I locate a throttle dash knob and lens?
I live in Metro Atlanta, Ga. ZIP CODE #30213  

Answer
I suggest you join
http://www.mercedesshop.com/shopforum/forumdisplay.php3?f=15
Several members are local to you.
Very possible they can help, may even have the parts on hand.
You can copy and paste your post from here, as your first post there to save time.