I currently have a site that is very similar to flippa.com.
I purchased the site / script (open source) from zeescripts. Currently, as is, the site is not functional. Your job will be to complete the site and perform the necessary testing so that the site is bug free on both the front and back end. This will involve quality assurance and user acceptance testing as well as customization and optimization.
Please do not bid on this project unless you are serious or committed.
Look forward to hearing from you.