Don't have to be an expert.
As Robert undoubtedly knows, there are multiple applications that automatically and simply duplicate entire HTML websites on to your own system, links, images, and all. Most of them are free. The one I use is WinHTTrack, but there may be better ones.
I've used this mostly to back up sites I work with that are going down, or need to be moved to other servers.
Just for fun, I'm dumping the EPA mirror site I linked onto my own computer. It takes a while, but it's all done in background.