You did notice the link to my build, didn't you? Too many pictures, but what the heck. I think your questions on angles were included in there. Mine is a little heavier duty than yours... or at least heavier, lol.
A million miles on a freightshaker is rough on the old bones. Last calculations I am just over two and a half freightshakers...getting tired of chasing polka dotted lines, but they just keep coming! One of the owner-ops at work drive their's as a team, by slipseating it. She takes it out and when she gets back, he takes it out. 6-7 hundred miles each, per driver per day. Poor old truck didn't catch it's breathe till the motor went at 1.4, and a week later a used motor from an auction was building air on the brakes. That only lasted a year till a rod chewed a hole through the side of the block. Now they are back to making payments on a newer one. The cycle never ends...
David from jax