Interviews with local shopowners (groceries) in Bangkok

I am looking for someone who speaks English and could interview ca. 10 different pasar store owners in different parts of Bangkok (Thailand) and go through specific questions which i prepared. I estimate one interview to take roughly one hour plus travelling time and typing the answers into the computer. So in total this would be a job of roughly 1 hours. Would you be interested in this job or do you know someone competent which you could refer to me? I would propose a $5 per hour plus a $20 as bonus if the work is done well. Thank you a lot in advance!