I'm not sure exactly what the question is, but if you need a shim I think it would be to raise the whole core so no need for one underneath, and the split/lock washer would go on just before the nut. Next to last.
I'd use a large washer for the head of the bolt to ride on(if it fits) instead of the split one 'second'.
Body shim/spacers are @ the FLAPS.
In the end expect to put it together and take it apart several times at least before 'things line up'.
I found some things reveal themselves after the 3rd or 4th time of fitting them all together and blowing them back apart looking for an extra 1/32 clearance.