copying from wheel fitment thread; realize this is a better place for these questions
So i bought these wheels

I am looking to buy a pair of 4inch lips to re-lip them but since i got the wheels so cheap i don't want to go too crazy on lips.
Does anyone have a picture of the "register gap" when using the "improper" lips for work wheels? I'm trying to justify spending double on lips for what could possibly be a negligible difference.
Also, does anyone know the hole spacing for work 18in 40 hole lips?
Is it 40x8.5mm?