Are you planning to shoot fixed or mechanical heads? If mechanical, you will have more room to play with shortening shaft length. That will help if you decide to load the front of the shaft with heavier inserts. For example, I am playing with some new setups and one arrow is an axis 340 cut to 26.5" with a 50 grain insert and 100 grain head. The bow is 67 pounds and my draw is 29". I shoot spitfire heads. That gets me a shaft that is 431 grains with an foc of 15 or 16.
Spend the time make sure you have the bow tuned then decide on your arrow i.e. Gold tip, axis, etc. Then make up test arrows one or two at a time not a whole dozen. When you settle on the arrow that is flying the best, make any needed re-tuning adjustments and then finish making up your arrows.
I also like a little heavier arrow, the one mentioned above is on the light end for me. Also prefer to push the foc up higher than normal as it really does enhance down range accuracy and penetration. The one other thing is that more times than not a shaft that is slightly stiff will yield better results than one that is slightly weak. My example above is slightly weak but flies good. Next arrow will be Alan axis 300 with 75 grain insert. It will be a little heavier and a little stiffer. I expect that will be the one I settle on.