Hmmm, this would be a challenge for even more seasoned quilters. Think, really hard about this. I am sure you can do it. I made a Bargello for friend's mom. I did it for free. My payment was playing with someone else's fabric and learning how to make a Bargello, and I was quilting for ten years at that time, preceded with 15+ years of garment sewing. Maybe do this one for free, at least it will remove some of the pressure and you WILL learn a lot. Good luck. As the Marines would say: improvise-adapt-overcome!