You will require to:
1. "streamline" vendor registration via front end (registration ala customer)
2. Add automatically new operator (kayako software) for each vendor registered. the login and password should be the same
3. Vendor rating and feedback ala ebay
4. Change vendor permission setting on admin page
5. Site minor modification
Ideally development timeline should be 1 month. Good luck
ideally quotation should be $1000 max
And please save your own time and my time.
Make sure you know what is Kayako helpdesk support application before you put bid.
UPDATED! refer to the attached document. Kayako integration does not needed anymore.
I am very much experienced in the implementation of Kayako SupportSuite and LiveChat implementations. The capabilities can be very easily aplied and can do a better work. Kindly allocate the work for me