I finally finished my install last week. It took about 1.5 days to do the physical install of the heater, fuel line, exhaust and about 1.5 days for wiring and reassembly. I took my time with breaks due to fatigue, stress or kids (I have a 1.5 yr old and 5 yr old)
I have EasyStart Select Controller, HAK, and external temp sensor. Here are some of my lessons learned and resources:
-The wiring is intimidating at first but its actually not that bad. Its basically power, ground, 2 external temp sensor wires and 4 control wires (yellow, blue white, brown and red)
-I was pretty nervous and making the weatherpack connections especially on the fuel pump since it didn't come with spares and I doubt my local hardware store carried parts needed
-I did get a weatherpack/double crimp tool but it didn't work really well. It takes a little practice but I used a combination of regular crimpers and the double crimp tool for my connection
-I could've used regular crimps for but I decided to use the terminals and connectors provided by the kit. It probably took me 3 extra hrs. On one my last connections, I insert the pin in the wrong position on the harness. I was able to push out the pin using a couple of needles.
-Definitely read the instructions. Its actually not that bad
-I ended up connecting the yellow wire since it was already connected on the HAK harness.
Videos
This one was very detailed on the wire termination and route:
https://www.youtube.com/watch?v=4BXF7xQ8Hpo
This video was a great overall with details on wiring:
https://www.youtube.com/watch?v=AbAbaDzmp64
Thanks to all those that contributed to this thread.