Looks like my afternoon. I had to do a bit of grinding too but I would not worry about beveling it. Definitely pull the ABS line from the sensor and a few of the clips that hold it to the axle. I also had the coil removed so I could weld up the rear and even with the coil out, access was still a little tough. Not my best looking weld on the back, but it got the job done.
I have about 2.5" of lift on the rear and bolted the panhard in the middle position. Before the bracket, there was noticeable rear end"sway" at highway speed if you hit a dip. Completely gone now.