Welcome DB River....
From my limited experience: 3 years+ after purchasing my first van, I'm just now getting to the point of finalizing & pulling the trigger on a DIY interior. Lots of reasons for this, but other than occasionally feeling like I'll be too old to enjoy it by the time I finally get it done, I'm glad I didn't jump into something I'd later regret or want to tear out & re-do.
I guess the main thing I've learned is it truly is a very personal thing. I've gotten tons of great help & suggestions from this forum, have crawled around a bunch of other's rigs, gone to expos, and looked at soooo much "Van Porn" & YouTube videos that I've gone cross eyed
. What I found was that it still comes down to how
we plan to use
our rig
most of the time & what's the minimum we need to make that happen. Everything else is gravy...
I can also tell you that along the way, we have spent way more $$$ than we ever anticipated/estimated. Even after scaling things way down from our original plan. That being said, we couldn't imagine a better vehicle to get us to where we want to go & do the things we want to do, in relative comfort.
Good luck with your adventure...