I remember when that was at one of the last Dunkel Bros. shows. It was an example and the conversion was quite expensive. Apparently, they were unsuccessful in selling any off that example. Not surprised. Not to my taste at all.
Reminds me of the 73 911 Targa-based custom that's been for sale for 15 years... Pretty hard to outdo factory designers.
Although I'd love to see somebody make a Boxster look like the original 1993 show car...
Porsche Boxster (1993) – Old Concept Cars