We actually have burned static/archived copies of our asp.net websites for customers many times. We have used WebZip until now but we have had endless problems with crashes, do
The Wayback Machine Downloader by hartator is simple and fast.
Install via Ruby, then run with the desired domain and optional timestamp from the Internet Archive.
sudo gem install wayback_machine_downloader
mkdir example
cd example
wayback_machine_downloader http://example.com --timestamp 19700101000000
For OS X users, I've found the sitesucker application found here works well without configuring anything but how deep it follows links.
wget -r -k
... and investigate the rest of the options. I hope you've followed these guidelines:http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html so all your resources are safe with GET requests.