As you have already got them up and running on a web server why don't you just send them a link to the server? Publish the pages and put a password on them to view them. Send link and password.
From my experences dealing with the legal types they either won't be able to extract the files or they will try editing them and srew any scripts up that you have. Which will then mean the others won't work and they send the whole lot back to you saying its knackard.
If your web server is on a linux machine type "man tar" and that will do the trick no problems.