I am trying to build a custom front bumper for my 2000 jeep cherokee but I need some measurements if anyone could help that would be great

The measurement in need are under my skid plate which is why I am asking I need to know the center point of my and I havent really done this before so if you have any other ideas please let me know also

I think I need to know the measurement from the outside to outside of the unibody and the inside to inside of the unibody.

Once again I have just started into the Jeep thing and if you have any measurements or tips I would need I would greatly appreciate it

thank you

I will also post photos of the bumper and jeep in it is done