Stick skid plate hole for filter question..

Anyone have an idea what the best way to mark or have measurements on how to cut the opening for oil filter on the stock skid plate?
I don’t do a lot of wheeling and don’t see the need to buy an RCI etc just for the hole.
I plan to bring it to a metal fab shop, have them cut it and make a cover that bolts on if it’s under a Hundy. Thanks

 

I'm busy watching my grandkids Brad, otherwise I'd find the post where a member here did that mod...Help somebody!!!!

 

I searched around but didn’t find it. I’ll look again.

 

Interested in this as well.

 

I found it but it doesn’t really outline the way to get a solid measurement.

 

I spent some time, and actually designed a oil filter access port for the stock skid. But honestly the RCI skid is available at a very realistic price point, offers so much more protection(oil pan and more), not a tin piece of poo, and an overall awesome addition. I could not in good conscience offer a cheaper option, requiring labor, when a much more realistic option exists.