I decided to post my "Before explosion" save file of my base, where my entire base is lined with TnT and rigged to a self destruct button, ready to go off.
This is also my most recent save, so feel free to mess around and look to see whats new, though I haven't had much time to mess with it lately.
Also feel free to make copies of the file and blow up my base as many times as you want!
http://www.mediafire.com/?i57ak9uwhefm61m