Well that is good of you, and if you trust her it would be a good first client.
What I would suggest is going and setting up a free wordpress site, or get some free hosting and throw something together. It is hard to say more cause I don't know the niche. If you would like to pm me you can. I will help any way that I can.
As lusius suggests it is a good idea to have a site, cause if that person behind you catches up with everything else, their site will push them over the top of you.
Seriously to set up an entire site with a .info domain is like $5.00, if she can not afford $5.00 she is probably already up that sh!t creek. Let me know if you need anymore help.