It's your car and your sale, but to split them up in my opinion is sacrilege.
To the buyer, if it's a "budget " thing, keep pinching pennies till you got the full amount.
No offense meant here guys, but our "lost and found" is packed with people looking for their original hipo engines.
Next Saturday would be fine, What exactly do you want on this car? Can I ask what you are going to do with this car that you do not want the original engine and grill