You will need to setup a new Trac installation on an EC2 instance.
This should feature a Kanban board per project (similar to Greenhopper in JIRA).
Test cases should be easily manageable as part of the projects, workflows.
Wiki should also be able to be enabled on a per-project basis.
Automatic remote backups should also be implemented (ie, to s3).
Full ticket statuses desired will be supplied upon winning this application.
Reply and tell me why you are the right person for this and detail you experience with the above requirements.
Contract will be fixed price, with milestone deliverables. See my oDesk history to see over $60,000 spent, to be assured that you will be paid for what is completed :)