Thanks a million for the photos Bryce. Sadly the Dodge bar isn't as wide as the one you have and can't be mounted in the same way.
I made up some brackets and put the bar on this morning.
It still require two additional bolts to attach the chassis brackets to the chassis. I would rather it was mounted the other way around as yours is but because it's too narrow it would be very difficult to make suitable brackets to attach it to the chassis.
Here's photos of how I attached mine.And yeah my chassis is in a terrible state too. The yellowish gunk is spray on wax if you're wondering.