We are a team of developers with expertise and experience in Wordpress. We have delivered successfully on many Wordpress sites (please see PMB for a brief list). We have not developed any responsive Wordpress site as clients did not require so. We are capable of doing so. We will pick on a free or premium theme that is responsive and will customize it to meet your requirements.
I have read the overview of your requirements. Please provide more details - will all pages be just informative? Only Contact page will have a contact form along with contact details? Also any design preferences (any ref. sites that you like etc.). These details will help me to select a theme that fulfills your requirements and design preferences.
If you have the content, logo (we can also design this if required), graphics (these we can also pick up from the net) ready then we can suggest everything else.
Once you share the above details, I will revise or confirm my bid in keeping with the scope of work. I also ensure a very thorough job. I look forward to hearing from you.
Please check PMB for some of our Wordpress projects.