hi Shelby, I think you have got the right idea.
As an agent myself, If that agent were me, and you came to me explaining the situation, I would probably describe all the potential issues that could come up, and why it is better for you to have an agent involved. (liability, disclosure, keeping on top of the loan agent, escrow company, etc). Keep in mind, I don't know your level of knowledge in real estate transactions.
I would offer a discounted commission, since basically you brought the buyer.
I did a very similar thing for a friend of mine, about 2 years ago, and charged her 1% (it was a $400k house).
I would just ask the agent what she would recommend.
since you may get some business with this agent in the future, it may be a good "investment" to pay her. Then you can see how she works. If she is good, and on top of things, then great, she can probably help you get more deals in the future. If she is sloppy, and doesn't do a good job, you have minimal investment, and now you know not to work with her anymore.
My two cents,
Brian