Blocks looking much better now mate, Where things bolt onto the block like the water hose you can lightly sand down with very fine sand paper - have to use a good technique to make sure you smooth it down equally.
Dont worry about the oil pump, leave that alone, clean the surface where the sump seals to the block so you can get a good seal again. Crank and shit you wont be abl to remove because it has 4 pistons and rods still attached to it
Start getting it all painted up so its nice and ready for when the head comes back now pal