I would give it a week, that is the time frame I normally allow for proposals in my real life business. In truth, if I have a real shot at the job, a week has never been a big issue. If they are shopping price, then they will have made up their mind almost immediately.
When you call her, if she has not made up her mind, that is when you pitch that perhaps you and she should work together to get a budget and you can work to meet that budget. I mean, the sales person in me says that the initial contact, when she requests the quote is the time to say "...I am more than ready to provide you with the quote for your request, however, I want you to know, we offer planning and budgeting services, if you can offer me a budget to hit, I would be happy to put together a quote tailored to your wedding plans." It makes is sound more custom, it makes it sound like you are on her side, and that you want the gig.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
Whip It Off, Chambers!
"perhaps...but then again...maybe not..."