what are the door cards?

so do I have to take off the door panels?

I will get them done professionaly by the body shop. What do you think a fair price to do this would be? or labor hours?

thanks again for your help, glad to hear it is straightforward.

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'90 300E
Lowered with Eibach Springs
Mouldings and bumpers painted body color
Clear front corners
94/95 W124 Taillights