Size of top?
Who provides batting, thread, backing?
Who pays shipping BOTH ways?
Ask for half of the amount UP FRONT, and the rest BEFORE you ship the completed quilt to her.
Decide, agree on, and sign a written contract that, among other things, designates how conflicts will be handled and that YOU will keep the quilt if she does not pay the final balance.
Remember this little quote: "Business is 'business', and friendship is 'bull sh-t'."
*You* might be making this because she asked and is also a member here with you, but she is still *hiring* you to do a job. Treat it as such. If you don't value what you do, do not expect her to. Start at $250 and work *up* from there.
Jan in VA