Thanks for the explanation - looks like a good truck for your needs.
I can understand completely about spending more time thinking about how to do things than actually doing them. In the beginning, I would make things, then end up changing or even re-doing thing completely because how it works in reality is different from what I imagined.
Now what I do is start a section of work - then make cardboard mock ups, let the mock up sit there for a week whilst I carry on with something else, so I can look at it and think some more about it. If often find it changes then, sometimes just a subtle change, ofen I scrap the whole thing and start again. Then if I am happy, I start to make it, but before I get to the point of welding, gluing or in permanently, I stop again, and carry on with other things, and when I think I'm happy with it, I carry on and finish it. If I have any doubts about it being the right way to do it, I don't start work, just leave it to think some more. Something it is weeks before I am happy with a particular solution, sometime just a few days.
The rear storage boxes on my truck have been a source of concern for almost a year, so no work was done on them, but I finally ame up with a good method of creating the hatch covers, adding some extra reinforcing, and making a skid plate - now I'm happy and I'll get them finished this week.
Good luck with your truck.