My Dad had a theory about building things, particularly hot rod related stuff. "First, you build something that won't work. Then you build something that works, but it's so butt-ugly you're ashamed of it. On the third try, you make something that works, and looks good!"
I've got an addition to that comment- - - - -you make, and correct enough mistakes building the first one that the second working model takes half as much time, and looks better! I'm getting ready to start whittling metal on the second rocker stud support rail in a couple of days. There was quite a learning curve on the first one!
Jerry
