Dear Sir,
I can do this work for you for < 30 $. Your work is very simple. Only one or two lines of HTML code is efficient for your work to finish. More over, I can teach you how to change your header or other contents, so that later on you yourself can change it.
It is also possible to change the header randomly. i.e. Let after 20 or 30 days your header will get automatically changed.
Regards,
Rakib