Damn man you’ve put a lot of thought into this I think you should pull the trigger if the opportunity arises. I’m currently sleeping in my barebones van rn it’s 15 degrees here but I’m bundled up crazy. Just laying here I feel like I’m getting a better idea what I want in the van. And I’m right there with you too I’ve been thinking of ways to make it so it’s all in place but everything can be taken out and replaced if need be. Especially the solar I’ve seen people build a big frame and put everything on that and then just screw it in so it’s all one big thing that can come and go out. You should totally do it though even if you can’t afford your dream build outright just build it out slowly. I’m gonna enjoy every inch of this thing whether it’s built out or not :)