There are several sub 5k mile Spyders floating around at $99k. My build for a 4.0 Boxster (lean) would be $95. Most are adding 10k of leather etc so 105k average for a 4.0
https://www.cars.com/vehicledetail/11e769bd-de3d-4ab4-919c-4b3dcba68ee7/
My C8 build is $82 with convertible, mag ride, Z51...