Big no-no on the eye protection; don't skimp on it. Those aren't rated by anyone reputable for protection, and I wouldn't trust them.
Having said that, you'll probably be fine if you really can't fork out but if I were you I'd look on eBay and find some military surplus ballistics goggles. They're not as stylish, but they don't cost much and will do a better job (plus most come with interchangeable lenses). Consider looking up the ESS V12s as there are plenty knocking about.
Edit:
I've also found these guys brilliant for clothing and other stuff:
http://www.shootercbgear.com/
Edit 2:
Also, if you're not wanting to fork out ridiculous amounts of money for gear then simply go second hand. The decent stuff takes years and years to come close to showing wear and so is generally available in very good condition.