back to the overhang.

Well I was designing an outdoor bar for a friend of mine. It is rectangular in plan and I wanted four hips to converge at a pin. With a bar he would naturally want an overhang.

This can get quite tricky.

Unequal pitches due to the rectangle will lead to some head scratching with an unequal overhang, and then some more headscratching with different common rafters for sufficient Height Above Plate.

The only method I have come up with is: try this, change that, then change that, oh damn, i gotta change that now. You get the picture.

Does anyone have a method that is not so back and forth? Stick framing example would be fine, or for that matter lets just make it lines. There must be a good order of steps.?!