I would contact my local quilt store. Ask them if they would be willing to cut your pieces for you because of the challenge you have. I believe that at our local quilt shop if you bought the material they would help you out here.
They are selling fabric and if they help cut it you can get it done sooner to buy some more. Plus a lot of stores have the accu cut that they use.
I love my local quilt shop!!! Even if the material is around $10.00 a yard.