the plate with the holes is the right one of the two.
what you need most is a turned cap over the crankshaft stub to protect the end and threads or you'll be needing a new crank once the flywheel is off.
Don't be in any hurry, just tightenup - best with an impact wrench - and go do something else. Come back later and tighten some more and go away again.
Some judicious blows with a heavy soft hammer on the cente bolt of the puller will help coax but you still may have to wait over nite.
All this if the rotor has never been removed.
If you are considering removing the starter free wheel, heat the assembly on the (electric)stove or with a hot airgun good a hot first 'case the screws are "glued" in.