Same with my old 250 Testarossa. I thought I did well achieving the price I got but it was to a dealer. He promptly tripled the price and sold it, then it was sold again with another 20k added to the price !
I see the original Ferrari running gear and new body created from the above is up for sale. The seller now claiming it as an original, its a long story ! https://www.carandclassic.com/car/C1587763
The classic and classic replica scene is where the money is at. Many of the cars at Malvern in the trade hall fell into this category , GT40's and most of the Cobra's and the Stratos etc etc. To think my first kit, a Brightwheel Viper was 995 for the body and chassis kit, totalled well under 5K to complete !