It would be interesting to know if the Eagle Express was shipped over from Europe. It was the first UNI-G I think in North America and those carriers are like the ones over in Europe and not to mention the towers.
Note: Before this lift was built, the Doppelmayr six-packs and gondolas had the tower head that looks like the ones on its older lifts, the flat top kind. Also, those carriers arn't the ones made in the U.S., the armrests are different too rather than just the hanger arm. That would explain why this chair is so nice because I think Doppelmayr in Europe supplies free seat cushions with its lifts like Poma of America.

Another reason why this lift makes sense that it came from Europe is that it is able to be converted to a gondola if Mammoth ever wanted to do that. So I'm pretty sure that this is from over seas.