adding some new features to my website

I have a website and i need to add the following features: ******Please read the Project carefully before you bid****** 1)On my website i have a forum where contractor and homeowners can communicate. I want to change the forum to create email account like here in freelance. I need homeowners and contractors to communicate via integrated email not a forum. I need the programmer to develop IMS system, once they contractor bid on the project they can communication via IMS of the site. Just like we do here in freelance. Where i click on my inbox and i see your emails. Also like here in freelance i want all the history of the emails to appear. So I will like to have the same process for the website as we have it here. So in this case we will have to erase the forum feature that i already have. 2) I want to Give the option to the homeowner to ask question to the contractor. This option i want it to work when a homeowner click on the contractors profile to have a box that says "contact contractor" again this will star this same email process. 3)add a box that as soon the homeowner awards the job, that they can see their contact details. with this function i want to re assure the contractor that he will have the information of the homeowner with out going back to the emails. 4)I need to build Email alerts to contractors when someone post a new job in their area. This email alerts have to go to the email they use to register to the website. 5)Email Alerts to contractors and homeowner whens someone write them an email. Again to the email they used to register to the website. 6)Email alert to me when a contractor or a new project or homeowner joins. This is to my personal email. 7)Add an extra button that as a homeowner to allow contractor to change their bid. 8)Add an extra feature that after a homeowner has approve to change bid, the contractor can change their bid and a link to be approve by the home owner. 9)Organize the FTP section so i can find parts of the page to edit them. 10)Add an button to that says (revoke award).