Sorry, I missed the question. I usually make the dies with the set of reamers Dan Green and I collaborated on, I have not been able to find the drawings of the reamers since I moved into my new shop. If I come accross them I will e-mail them to you asap. The set up we are using now is a regrind of the original with a shorter throat, so it may be easier to send you a fired case and some throat dimensions, here is what I remember off the top of my head.
.5835" dia. .200" from base
.565" dia. @ shoulder wich is 35 degrees.
neck is .336" 45* to .3086 to + .090" = freebore to 1.5* throat.
It may be easier to do a 30 Yogi for the do it yourselfer, there is a lot more engineering in this system than the reamer dimensions. This type of accuracy and brass life comes from a combination of things that few if any gunsmiths are tooled to do. Some of the key things we do are proprietary, it is the difference between a 3/8 MOA gun and a sub 1/4 MOA gun.
You have a great mindset for continuous improvement, keeping an open mind to new ideas is only half the battle. One still must find creative and logical tests that will differentiate the truth from the bull, in a way that is valid to the bottom line. This is what I believe was the true genius of Harold Vaughn, and probably any great researcher.