There is plenty of information out there on the 4AGE conversion but unfortunately not all in one spot. I would recommend spending plenty of time on the LEC Knowledgebase reading up on 4AGE.
Saw this a couple of weeks ago on the Yahoo mail list, look up message #155911.
"155911PELS kit for sale 4A-GE into S1/S2
stanswell
Oct 11 3:39 AM
This kit being passed on again, I have decided to keep a Renault crossflow as my 'spare' so no need for this (also have a 4A-GE engine for sale)
Kit consists of bellhousing adaptor for Renault trans, engine mounts, Alternator mount, templates for any chassis mods needed, and instructions.
Looking for £500, will ship if needed
Located in Bedford, UK
Contact me on steve @ deadcod . com"