R&R 78 corboba oil pan?; 400cid engine
 

I had this in the B-body forum but thought it might be better here;

I hit some road construction and punched a hole in my oil pan of my 78 cordoba (400 CID engine). I ordered a new chome pan from ebay and was wondering if this is an easy R&R. Do I have to lift the motor, or pull anything else out of the way to swap it out? Any advice is appreciated. Thanks!

There's nobody out there who has ever done this before?