Many thanks for your advice on this. I have actually bought an another vehicle, so I don't feel the time pressure. Still, I do want to get it back on the road before the winter.
So, for now, I plan on installing the LCA/Frame kits from Autorust. Slipping in the heavy duty pipe inside the crossmember and welding the mounts on. I will also figure out outboarding the shocks. I already bought a set is made for Ford trucks that helps with this. I will need a longer pair of shocks and spacer, but I really don't want to tackle replacing the shock/coil plates now, though I have the parts.
BTW, are you sure the length of the pipe needs to be 43". I bought a 48" pipe and it appeared to be the perfect length.
I will verify when I get home. I have 43" in my notes on my phone. As I have 2 3 gens in my garage. I can easily verify this. :]