Try searching Reverb to find a similar one and what the price is. I have a 1980 D50 in perfect condition (bought it new in 1981) and if I ever considered selling it, I wouldn't part with for less than about $2750 - $3,000. Perhaps way on the high end of pricing, but it is an excellent instrument in all ways (including the case), and also has a lot of sentimental value to me (which can't be measured in $'s).