You want to charge $1000 - 1500, but you don't want a cheap solution to help you? What's the dilemma, again?
$1000 is cheap for a 10-page site. That's $100 a page. If each page takes 5 hrs to make, then you get $20/hr. Is this what you want to make?
I think PHP OOP is overkill for such a small site.