Transmission/shifter questions. 73 dart sport

if the car orginally came with a /6 and now has a 318..then the trans is not orginal ..as a /6 904 will not bolt up to a 318. ...you can not going to find a console and shift NEW....ebay...craigslist...part for sale section of FABO,,,,

yes..the hole in the floor board is for one of the stock shifter lever ....