For instance, my fuel line and regulator run behind the tank next to the rear window. I was trying to keep it away form the exhaust. It was one of those things that haunts me. I know if ----I mean when I have a problem it will be nearly inaccessible when the window goes in which means I need to change it and re-plumb it which means back on the list!
The electric power steering pump tank was that way. I modified the plastic tank to move the return line but it was not a good solution. I knew I needed to go back in and re do it.
That meant a couple hours getting the pump out of it's fox hole, which meant undoing the front cooling tubes, building a new tank, put it all back together.
That is done and it does not leak which is fantastic; but it was a dreaded item on the list...and there are a few left.
The next dreaded item is making a new removable bubble from scratch which works with my console and is completely independent and removable. I do have the metal cut but it is just one more thing which takes time and focus.
Building a car is nothing but a list of problem solving....one at a time.