Dennis Olthoff's site usually has a used SPF Coupe for sale. I've seen them advertised at $75,000-$80,000. I don't know if it has sold, but there's one now advertised at $80,000, but you need to scroll down the page to view it:
http://www.olthoffracing.com/
Here's a SPF Coupe roller asking $70K, but I've seen it on eBay with a BIN price of $60K:
http://www.dmautosales.com/1965-supe...oupe--c-25.htm
I'm sure it hasn't sold because of the non-traditional color, because it has been for sale for a couple years, but you could always paint it.