I got mine mostly welded on Monday. Something I noticed in your pics. TnT says you need to trim 2 3/8" off the driver's side of the housing on the F250 housings. I thought about just trimming the truss like you did, but the problem is the lower control arm mount. It needs the housing trimmed so your not trying to weld the control arm mount to the cast iron housing. I didn't like trimming off part of the housing, but having the control arm mount welded to the housing will cause 2 issues. First, since only half of the mount will be on the housing (requiring half of the mount to be trimmed) and the other half on the tube, there will be a clearance issue with your control arm (it's not going to fit in the control arm mount). Second, I don't think the weld to the cast iron would be all that strong and may eventually tear off.
I have mine set up at 12 degrees of drive shaft angle and 7 degrees on the "C"s. I had to do a little trimming on the truss to make that work, but got 0 degrees on the spring pads at those settings. If you have a retaining bolt for your springs, that and the spring cup will keep the springs in place if it's not exactly at 0 degrees, as long as it's not off too much.
