Aperture and iPhoto failure: merge library of 65'000 with 30'000 and aperture crashes without giving you a chance at duplicate detection

After some 12 hours of merging and analyzing Aperture died on me and I could on restart not select to remove the duplicates that it should not have imported.

The total library size being 500 GB I did not want to try to restore and start over. Manually going over the 95'000 pictures some 7'000 events is possible but time consuming.

At least the merge per se of multiple iPhoto libraries with Aperture is possible!!