It depends on what you want. If yo want low-end torque (which is a lot of fun) maybe a high compression NA build is best.
By the look of your work, going turbo would not "mess it up". Since you're doing the work yourself you can afford to take the time needed to do a work of art.
If you do go turbo, I doubt that you would ever go back. If you stick with NA, you may wonder what it would be like to go turbo.
I ended up going with a built motor with twin turbos so I wouldn't have to redo it again soon. I wanted low end and high end, even at the sake of having more complexity. Mine is a project car so I wanted to have things to tinker with. The turbo may offer more variables that you either like or don't like. It's easy to dial up more turbo power, but then you have to solve the traction problem (spinning rear tires), tuning, safety issues, etc. If you are thinking of going turbo, you should also consider the intercooling and meth/water injection systems that you would be using. You may also want to modify the VVIS system, delete the EGR system, increase the cooling capacity, use larger wheels, tires and brakes, change the MAP sensor, etc, etc, etc.