1980 911 SC Targa

Hey everybody, i have a question. My father owns a 1980 Porsche 911 SC Targa in pretty much pristine condition (around 10,000 miles). IF (if is very, very stressed here because this is obviously not my decision) anyway, if he were to sell it, what value could be expected? He was wondering just so he could know and i'm just trying to find out for him. Once again, this is not a classified ad or anything and the car is not for sale. Just asking! thanks for any info, i'd really appreciate it.

hey....got an offer that you cant refuse...if ( and this is taking into consideration that it is a porsce and it was obviously used if it has 10,000 miles on it)....you cant sell it...i got a sweet yugo that i'd be willing to trade for it...plus new wheels and tires!...
but anyways...im just guessing from what i've seen online for sale and the like with porsches....mybe 'round 20,000 dollars u.s.?
...the offer still stands though...good luck with the potential sale!