The site’s giving a 503.
Here is the Google cache of his manifesto:
http://webcache.googleusercontent.com/search?q=cache:7gnU3T4mdXcJ:lastrhodesian.com/data/documents/rtf88.txt+&cd=1&hl=en&ct=clnk&gl=us
Also printed here...
http://www.ijreview.com/2015/06/349064-dylann-storm-roofs-manifesto-reveals-the-real-motives-behind-the-mass-shooting-in-charleston/