When I pulled the engine out of my 47 I didn't need to remove either the grill or fenders. You can get the engine out without that.
Remove the radiator though so you have room up front to work. Also, I removed the head first as this gave me a bit more clearance plus make it lighter. Manifolds off and generator and oil filter. Pull the engine and the trans together as the flywheel needs to come off to remove the bolts holding the bell housing. To take the flywheel off, you need to remove the rear main cap. Dont forget the fan too.
Get yourself one of those engine leveling bars that you can crank to change the slant of the engine. As it comes up you will need to raise the front of the engine. All the way to the front of the car and it should just come out. I didn't even have to put the car on jackstands.
I used moving pads to cover the fenders and grill and did no damage. Took about 2 hours to get it out and about 4 to get it back in.
_________________________
Bill
1950 Buick Super Estate Wagon
1947 4 Door Sedan
1964 Riviera