Zen Cart Specialist Needed For My E-Commerce Website

I only need professional Programmers to place bid in this project. I don't need any time waster. My website is [login to view URL] I want you to fix errors and bugs in my website. Suggestions from professionals are welcome. As its an eCommerce store I will need a professional programmer to support me when ever I will need him/her. It will be a life time opportunity for the right person. Please check the requirements in attached file. Let me know exact time frame to fix the things I have mentioned and cost as well. As I am not interested to Pay hourly. I am comfortable with Fixed Price. Regards Sanjid