Is this normal for the knobs to be kinda set back toward the rear in their casing holes? They don’t seem ‘central’. A lot of leak at the front of them.
That is normal, actually there is a hole for the knob shaft, then a small notch (which is what you are seeing in the pic) the notch is for a centering pin on the pot.
Cool, I actually like the way it adds to the diy/industrial aesthetic. Just wanted to make sure it was normal