Custom my Wordpress website

I have a Wordpress website installed - it is a marketplace theme. The theme is: Marketify - Themeforest That's just the wordpress theme/template. To function as a marketplace, i added on these plugins: Easy Digital Downloads + Front-End Submissions + Commissions + Shipping. The customs i need are: Homepage Current: Seller profiles not displayed / Custom: Display Seller profiles + Popular Profile + New Profiles Sellers: Current: Sellers can sell as many items as possible / Custom: website admin controls how many items all sellers can sell Hire: Users can also Hire sellers for projects (just like this website) by inputting Project Details, amount, require by - and seller can accept project. User must be registered to do this, thus allowing them to chat with sellers. Users and sellers can also mark project as complete or incomplete, and leave a review and star rating Seller Profile: Current: Basic profile + items for sale / Custom: Ability for Seller to upload qualification certificate, and it be displayed on the profile page Rules: - You must have clean coding coding must integrate but not conflict = and won't conflict with future plugins - We will not pay here, you need a Paypal account. This is because we have other websites that we would like you to work on, this is the start of a long term work relationship - this also means we will not award here. - We will the amount only after completion of project - there are many cheaters and liars on here - we have been cheated many times before and it pisses us off - You need to issue us receipts - company or personal, doesn't matter, we just want to have a record. We have a template you could use, very easy, basic. We are a company, not an individual. - You need to meet your deadline, no extensions - some cheaters we experienced keep extending, extending, extending time - no. If you understand; please add on: "Fantastic Green Life" in your message to let us know you have read our requirements. Thank you.