Hello!
I have cheked your website and i can see that is done using Wordpress, witch in my opinion is the best platform for this type of project. I can make your tab to be an online bid and to have the market prices of certain sea fruits like you need, and also make it have a mobile version for your customers to use an iPad or iPhone to request the firm pricing immediately instead of shopping around.
As a proof of my strong expertise in website design and development are my profile reviews and my portfolio. There you will find a lot of successful and similar works done by me and satisfied clients that choose to work further with me.
Your projects seems to be very interesting and i'm looking forward to work with you. Please take in consideration that i'm standing open to answer any questions that you have regarding this matter.
Thanks for your time, have a nice day!