Lol, I know exactly what you mean. I must have gone through a dozen different designs before I settled on what I was going to build. The most disheartening bit is when you think you've got it done then notice there's a collision or something doesn't quite line up correctly.

I'd be interested to see a front view as your design you seems to have a full height side plate on the gantry. Do your x-axis screws stick out a long way?