Just wanted to say thanks for posting writeups on your projects. I too live in Denver and recently purchased a class C in Texas and drove it back. I also wanted a chevy based chassis, I have a 2002 Four Winds 5000 28a with the 8.1L Vortec and 4L80E trans.. I have a lot of the same things planned that you have already completed. Unfortunately I'm still trying to get my roof replacement complete, the weather hasn't been very cooperative lately.
Question about your Derale Thermostat, after reading about it is the only advantage the warmup time or does it help in other situations? If I read your temperatures right your fluid temp was lower while coasting after the valve was installed than before?
And one other question - on your dimmer circuit I saw you chose to install a separate switch since you couldn't easily locate one to tap into.. did you consider the radio wiring harness or was it too difficult to reach?