Interesting way you describe the roof, but what I am getting is the overall width is 34 feet? Which gives you a slope of 17'? Anyway, the length is unimportant. Your issue is the roof is "longer" at the ridge, then at the eaves, correct? This was an architectural style popular in the '70s around here. We either do a custome trim line for the rakes or, we notch the rakes to fit the ribs in the steel exactly, and seal with 50 year clear silicone. The custom trim is your best option, and while it is expensive, makes a great looking rake line.
I am not savy enough to draw on the post, but if you will follow my description on a piece of paper, you will get the idea.
Start at a point, move vertically up 1 inch, then 45 up and left 3/4", then vert. up again 4 inches, then to your right on a horizontal 3 inches, then return (hem) back left 2 inches, then down vertically 3/4", then back right 6 inches. This will give you a rake that will let the ribs "tuck" into the channel and hide the cut line, plus allow drainage down the channel to the eave. Good luck.
