Is my '68 911 S worth $100k?

I recently inherited a 1968 Porsche 911 S from my grandfather and I'm eager to get it appraised. The car has been stored in a climate-controlled garage its entire life and still retains much of its originality. It's powered by the iconic 2.0L flat-six and is said to be one of only a handful of '68 S models remaining in such pristine condition. Is my grandfather's pride and joy truly worth $100k?