Double K, we must be close to being neighbors.

You mentioned the value of wiring and plumbing details. You might be surprised, or not, that some existing converters hold much of their electrical details, even fuse IDs, close to the vest stating these details are proprietary. Some of us, but certainly not all, want to be able to perform some service ourselves or go to any reputable service center. Ohers don't mind going back to the converter for service. Depending on which camp you're in, it might make a difference.