You don’t have an interview or even a job yet. In the places I have worked I know it takes a minimum of 30 days to start a new job. You have to interview, usually they will interview other people so it takes a week or so for the offer, then you have to take a drug test, etc. So in the meantime, you should have another job because it looks better to potential interviewers instead of you being unemployed. I’m also wondering what your health insurance situation is. Will this job offer insurance? I say, take the job until another offer that you want comes through.