There are a few books out there on how to set up your sewing space. You might want to look them up online.
Personally, I purposely keep my ironing area away from my sewing area just so that I have to get up and move. Only with a crazy quilt or similar project will it be relatively nearby.
Remember your ergonomics: have the sewing machine, the cutting surface, and the ironing area proper height for your use. Then, if you can, invest in a good chair!
Looking forward to seeing the end results of your project.
ali