Hi,
I read your requirements,it's very easy work just to replace the logo in the site.i will check the responsiveness after the change don't worry about that.i will finish it asap.
I am a expert web designer with 4+ years of experience. did many kind of project to design website as per client requirement.I have good experience in psd,html5,css3,bootstrap,media query . I will give you best support with your needs.
I would really appreciate if you could take into consideration my proposal and come up with PM .
Looking forward to have further discussion.
Thanks a lot for providing your valuable time.
Kind Regards,
Team pheobus