If I were in your shoes, she would purchase the pattern and fabrics for top and backing etc..I would estimate my time to make the quilt and I would charge in the $15 -$25 per hour range depending on the complexity of design. Regarding the longarm quilting if she wants the quilt custom quilted then I would charge whatever your rate would be depending on complexity of quilting. I have no idea what a personal trainer charges per month but I would expect to barter weeks/month(s) of personal training of an equal value for your work to produce what she wants from you. And I agree DO NOT under estimate the value the skill that you bring to the table.