Here's a zip with all the information I collected two years ago on it:
http://christopher.implex.net/4G64Swap.zip
Some of it is just general rebuild info for DSM's and 7 bolt / crankwalk issues in particular. The page "4G64 Info Page.htm" is probably the main page you'll be interested in.
Note that none of it is gospel. It's what I personally thought was relevant two years ago when I started my rebuild. I won't be responsible for inaccurate information and you should always do your own research and come to your own conclusions as well.