Hi Jeffand thank you for your interest. I am still learning and experimenting. I am just now reading this post late and I will show you the profiles tomorrow.
In the meantime basically only for the tip I used a 2D profile of a circle at the end of blunt bit, then used a very thin rotated rectangle (on same plane as circle). Then I moved the very thin rectangle out away from the circle. Then I lofted the two profiles , circle and thin rectangle. I then “added” the created tip to the body of bit. I realize several things about the bit that is not accurate such as the angle of tip. My experiment was to even see if I could do it. I can then go back and be more scientific with it. I will post the main profile image later.