I'm not sure, your best best is to post a bid, and have the employer chat with you.
This is not my job, I'm just helping the person find people.
I have checked the sales shop at the workingforbitcoins.com shop but i feel that the person that posted that job should rather post it at the service section on this forum where people with past successful track records can apply.
Post this thread in the appropriate section if you feel like assisting the person.