Mark posted this at sellajeep.com. Its has a variety of updates. If I understand correctly, the windshield has been rebuilt (which looks well done).

http://www.sellajeep.com/mjs/sale22/ad026/ad026.html

“I have owned this Jeep for forty years. I restored and rebuilt it to its present condition in 2017. It is original except for the 4-cylinder Chevy engine from 1977. It is in excellent condition running and otherwise. I rebuilt the transmission, transfer case, clutch, release bearing, pressure plate, steering system, etc. All four brake cylinders are new as well as the master brake cylinder. All of the brake lines are new, both metal and rubber. The restored body is original. I repaired the floor boards and replaced the bed. All of the support channels under the floor are new. The storage compartment under the passenger seat has a new steel floor. I fabricated a new windshield from 4130 steel aircraft tubing. The windshield frame is aluminum with new glass. It has a clean title. I drive it frequently on the highway. It could use a new radiator. The original one in the Jeep has a small leak near the top. It does not cause a problem even here in Florida except for the puddle it leaves on the garage floor. This a Willys that you can use daily on modern roads and run hard off road and it will still be good in another 75 years. It is original from the flywheel back having a jeep clutch plate and pressure plate so if someone wants to go back to the original type engine it is a simple bolt in place swap.”