Chrome Ring on rear of cab, 72 Super - Installing one?

[cedorris]

My 72 Super came with a chrome ring on the back of the cab below the window.

I'm doing a cab swap, but want to keep the chrome ring. What is the best way to install a chrome ring to the rear of a cab that did not come with one originally?

Am I going to have to line up and weld in those studs? Please tell me there is a better way.