get a piece of fake leather and make the shift lever cover yourself and get rid of that cheap looking torn rubber boot.
The original covering goes over a chrome fastening sleeve that clips onto the gear knob. Look for a person who can remake the seats to original quality, the original seats of this car were quite comfortable and have thick bolsters to keep the occupant centred. And instead of spending huge money trying to change out an entire interior with a new one - fix this one back it will be a far better choice.