Custom Wordpress service website to allow freelancers to sell items too

Hi! My wordpress website is a freelancer website - please visit: [login to view URL] - this is like freelancer.com or elance. I am using the freelancer theme, Hirebee from Appthemes. However - i want my freelancers to be able to also sell items - not just offer services. Are you able to help do this? This would need to integrate well into the current system - and freelancers also control their items for sale from their current user frontend. The home page would need to be a little different too to reflect this (to allow section of items on sale) You need be great with wordpress, clean coding. We can award here but NO milestone until project is done - we have been cheated here a few times. If you are good, we will hire you on more websites. You must keep to timeline or project go to the next person. Please add the word "Awesome" at the beginning of your message - we also want to see samples, thank you. We can start work immediately. Thank you.