Complex sentence: He auctioned all of them off and kept for himself the size 5 1/2 pair worn by Judy Garland for static and close up shots, which were in the best condition out of all pairs.
Split into simpler sentences: He auctioned all of them off and kept the infamous 5 1/2 size for himself. These ones were worn by Judy Garland for static and close up shots and were in the best condition out of all pairs.