Thanks for the advice Glen, it looks like it will hqve to be. I think i am overly long in the torso, I am 6ft2 and only have a 33 inch inseam so i am overly short legged, and from my illac crest to the neck vertebrae I am 24 inches. I suppose that sort of puts me in the average 6ft 6 person in torso length.

Edit.

Actually i need a 22 inch back length, but if the frame goes beneath the illac crest 2 inches and needs to protrude 2 inches above the shoulders, that is 26 inches frame length ? Correct ?