I know what you mean, but no-one's going to go to the trouble of doing the work for you, seeing as it's not very legal and all that. however, there'd be no problem if you did it . all you have to do is be able to extract the models (google), be able to edit them and cut up individual parts(free 3d editor, or, if you want, 3ds max. also google), then look around this site for tools on how to convert them to an FF7 format and import them into the archives. i learned how to do it in like 3 days. You may even find people willing to PM you links to their models which they already exported to FF7 format, and edited them perfectly.
Good luck.
