He spent a helluva lot more than 100k. That's just the airplane, sitting at an airfield. It had to be moved to his property. Mucho dinero...
Probably best to add up the numbers in the article. $100k to purchase, $20k to transport, and $15k to renovate.
I stopped reading at "I’m a nerd. I don’t cook, so it’s a minimal kitchen area".
[French nerd here. My most important room is obviously my kitchen]