I will be touring a bit starting next week, but will try to keep an eye on this. Its easier to answer questions when i am home and can reference the unit.
I would say to make sure that everything is done slowly.
-raise the big power transformers off the PCB with a couple of washers, but also make sure that when you mount them there is a good connection through the screws(this is the collector connection)
-when populating the front PCB(with the switches and pots) make sure to fit it into the front panel while soldering. I didn't do this and my front panel is a bit askew.
-I would replace the hold trimmer with one that allows you to adjust it while on the front panel. Makes it easier to adjust while assembled.
-get some way to test the unit out of the 500 series rack. I have a 18 pin EDAC connector that i slide the PCB in, connect the 24v,16v, and Signal generator, and i'm able to go through the unit to make sure it is working.
-there were some parts missing in my kit. Some standoffs, but also some wrong caps. Go through the parts and see what you have or don't have. I think i mentioned some of these parts in some earlier posts
Ian