He could have gone up to the top of Burj Khalifa instead. But, that wouldn't have placed him on the headlines. Also, he is running for governor. As far as I can tell from recent experience, he will win.
https://aviation.stackexchange.com/questions/27076/what-is-t...
Or, just book a flight on a commercial airliner, which is also cheap but doesn't get you a panoramic view. But you'll get way higher than 1875 feet.
Probably a skydiving trip would be a better plan then. I've never done it but it seems you jump from a decent height (13K feet or 4km -- so says https://adventure.howstuffworks.com/skydiving1.htm ) because they want to give you some good freefall time.
But I suppose the truly dedicated flat earther will find a way to dismiss that too.