If what you listed here is what he sent you, I suggest asking yourself if he’s serious enough to work with you.
"Rearrange some text" and "Put up some new testimonials" doesn’t mean anything to you until he clarifies. He might expect a small redesign of sorts, for all you know…
If you think from the tone of his e-mail that he is serious and knows what he wants, offer him a reasonable price for your work (no one can help you much here). However, indicate that any further bigger changes outside your agreement will add on to the original price.
Hope this helps