Not to sound negative, but are you really qualified to do this job? I realize you’re out of work and this is a good opportunity, but it doesn’t sound like you’re ready to step into this role as a contractor.
Just because someone loves gourmet food and owns a gourmet oven, doesn’t make them a gourmet cook. Would you want someone cooking a meal for your boss if they ate gourmet food and owned an oven? Basically you have experience with audio work, but have not shot nor edited video. I can only imagine how this may turn out.
This company may be talking low quality (home-made look) but I bet they won’t be happy with that approach. As Mark said, YouTube videos have grown in regard to production value. These videos will represent the company. A poorly produced and shot video will leave a poor impression about the company on the customers.
Kudos to you for stepping out of your comfort zone to try something new. But maybe you should hire a one-man band for the first one, so you can learn the ropes. Perhaps you should be the assistant for that one.