This brings up a question: Why so exact, what would it hurt to just shoot a 31 inch arrow ?
I shoot full lenght shafts and my draw is only 27"
My arrows are Gold tip 3355 with 100gr brass insert, 125gr head 3x4" feathers.
When you get your new arrows install the insert, head and nock that your going to use and bare shaft to see what they are doing then if need be you can cut them back from the nock end untill you get them tuned or add more head weight if they are still too stiff. It will take a bit of time but well worth it in the long run