A.
Yes, unfortunately you will need to drill two more holes on the right hand side and gently lift the decal to access the screws. You will be left with 2 original screw holes visible unfortunately.
We do not have hole plugs but we do have stock of replacement handle at our Warehouse - upc 38111 Iceco Door Latch @ $14.99 + freight if any damage is done to the handle.
To swap the door swing direction, you will need to remove the top and bottom hinges, swap the hinge pin to the opposite side, and change the door stopper/bushing at the bottom of the door.
Cheers!