Wranglers are superficially high in price which has brought a following to the Cherokee. Now the Grand Cherokee is the new Cheap Jeep (depending on condition)
There are headers available for reasonable. I am interested but not till spring/summer. I plan to go south to find a rust free one. I'm not surprised you see them at auction. They were 4x4 of the year almost every year they were built! Sold bajillions of them!