"I know you want the yokes to be parallel (xfer and diff) so it seemed like if you put the perches at the same angle as stock, they would surely be parallel as from the factory, just at a steeper angle."
Yes, true for non CV type drivelines.
Going with a CV type alows you to rotate the pinion angle up for added ground clearance
One half dozen or another, 12 ways to skin a cat
hehehe
Good Luck
