Brutus,
I must say that other than the absolute frustration of trying to install the power brake booster myself, the number one must bothersome project on my car was rebuilding the trailing arms. I at least make the first attempt of doing any and everything myself where I am able to get my hands on the tools.
I bought the offset arms, then all new bearings, seals, etc. There have been several threads on this, so I won't go into detail other than to say that I believe I got it right (setting up the axles), but really won't know for sure until I hit the open road. It leaves that trace of doubt in my mind. Although I am blowing unGodly amounts of money on this car, I also try to save every penny possible. The trailing arm build was one of those areas that I did save quite a few bucks, but put a few extra grey hairs on my head in the meantime.
Do you know how tough it is to measure .008 or .003 on those assemblies? Maybe you will find out soon. The trick is, I set mine up with a dummy axle. However, when you put the real deal together the seals and what not tighten it all up as well.
I am keeping my fingers crossed.
Good luck.