Dear sadia2303,
I read through your description , I can apply new theme to your existing site with required modifications.
Could you please give me you existing site url so that I can give you estimated time and fair price.
Sections included:
1. Modify theme to give look to your site.
Time and price given with this proposal may vary according to requirements.
Please confirm sections and let me know if any mistake .
Waiting for reply
Thanks
Jolly