I don't know that it's a terrible resource, I actually think it has a nice layout and has the right type of information, it could just use more breadth.
It offers one specific method for each area which you can see on alot of blogs, etc. The approach in paricular (At least for electrical) is also pretty basic and rough.
For example - the electrical buildout basically just drills a hole in and epoxied into your roof. As opposed to something like a cable box w/ waterproof connectors.
I think it's a great start and would love to see more depth and also a few options like: "Want to power alot of stuff? 400w of panels and 2 deep cycle batteries" vs. "Just need to power a cell phone?" etc.
Just glancing through the sight it seems like some things like his insulation strategy are a bit poorly though out.
Google around a bit on you'll see there is a lot of debate on how to deal with condensation to prevent rusting out the metal of your van. It isn't clear if he's intending his system to deal with this by creating a vapor barrier with all that spray foam or if he's just going to end up with a bunch of condensation trapped in the space between the foam and the metal leading to rust.
And reflextix isn't particularly useful between two layers where it isn't exposed to radiant heat to reflect so I think he just wasted a bunch of money sticking it under the foam.
Personal experience outside of van building: His insulation instructions are pretty suspect with even a basic understanding of how insulation works. Electrical is done in a way that works, but will make modifying your rig in the future very difficult.
Personal experience on van building: I'm on my 3rd iteration in 6 months of building. This is because as I build it out and try to live in it, I realized that certain things have to change for comfort/safety/ease of use. It's never really done, you're constantly tweaking things.
If you build it out according to the Vanual, you probably won't die/freeze to death/etc. But it might not a great existence (e.g. comfortable or enjoyable).
It offers one specific method for each area which you can see on alot of blogs, etc. The approach in paricular (At least for electrical) is also pretty basic and rough.
For example - the electrical buildout basically just drills a hole in and epoxied into your roof. As opposed to something like a cable box w/ waterproof connectors.
I think it's a great start and would love to see more depth and also a few options like: "Want to power alot of stuff? 400w of panels and 2 deep cycle batteries" vs. "Just need to power a cell phone?" etc.
Here's a great guide for the electrical side that I have been working off of for our van: https://gnomadhome.com/van-build-solar-electrical-wiring/
And here's a nice overview which would be good to have for n00bs: https://www.youtube.com/watch?v=1k9qlZM1ars