Wordpress projects site customisation and addons

**********Please go through this link & my posting before bidding******************** We have wordpress Bidding theme & functionality of full version with few add-ons of [login to view URL] Now we want to have further modules added with few custom additions to this, which has following scope but not limited to At Macro level Site will have four types of elements i.e Bidding of projects (which already exist), Training events, Projects Sale, Notes Sale & Journals Sale Bidding: As shown in above link this module with all plugins is already installed and used, we might require some customisations in it as per functional requirements Training: Few Faculty members will post Training events with date, timings and durations (one time, daily, week etc), interested users will subscribe by paying the nominated fee. Need provide live online classroom facility with all required features where subscribed users can join the class Funds will be on hold with site provider until event is over Feedback will be collected on classes form subscriber via star rating & also comments based on feedback amount will be settled to trainer Projects/Class Notes & Journal sale: (This feature already exist on theme need few customisations) Some users will be able to sell their projects and earn money on it. There will be listing of projects by selecting pre defined subjects and pricing with basic information and abstract. Up on purchase by individual it should be available in their login for download There will be set of subjects defined for each of above modules which will be selected while posting them. These subjects will be searching parameters to subscribers or buyers Other features needed to be added User signup with Facebook, Google etc Custom profile form with about 25 fields and photo and required attributes to be selected from drop down to categorise the users Live class room option to be provided Chat option between users We are open to use any good thirdparty plugins for virtual classroom etc provided its updates do not effect site functionality in future If you have understood the requirements and need any clarifications ping me, I will give further details.