Ideally, I don't want to take a salary for a few months. I'm also starting a new job in a couple of weeks. Should I include the new job on my resume to show that I'll have other income? Or will they think it's bad that I'm starting a new job and a new business at the same time?
To be honest I think if you are starting a new job then it's best to avoid the loan as this will usually come up as part of the question. Here in the UK many banks or startup loan organisations will want to know that you are focusing on building the business and generating revenue in order to pay back the loan.
If you are going to get a job I suggest you focus on bootstrapping your business idea rather than getting a loan. You can't put your heart into both. Many have tried and end up living in regret.