i was looking for a site that had the full strip down of the p12 and found this site it has stuff for the 1911 also
http://www.m1911.org/technic_forum.htm
I looked
for ever!!!! for it so i'm sure there are other people here that can use it
it's under
"Complete tear-down and reassembly of Para Ordnance LDA (courtesy of Linkless John)"