Thanks so much for your fast response, Janine.
I have only exchanged one email with them so far, in which I asked them for details about the project. I wanted to be sure I could do it first before I said I could, or before I told them my fees. I should have been more clear when I said "I THINK" I can do the job on my post. Now, "I know" I can do it because I actually did all the steps yesterday using made up data, as a trial run. I just won't charge for the time I spent yesterday. It was a learning experience.
I will let all of you know if I end up doing the project.
Thanks so much!