Ayuda para poner precio a mi martin

Tengo una MARTIN D-1 del año 1993 comprada en Organigrama en Málaga. Quiero venderla pero no encuentro referencias para pode ponerle un precio.

https://www.youtube.com/watch?v=b9rEZeRlNZA

General
Binding tortoiseshell binding
Finish colors natural finish
Finish effects satin finish
Made in USA
Number of strings 6 strings
Scale length 25.4 inches scale-length
Body
Body back material mahogany body back, sapele body back
Body sides material mahogany body sides, sapele body sides
Body top material sitka spruce body top
Pickguard material black pickguard, tortoiseshell pickguard
Soundhole rosette 3-stripe rosette
Soundhole round soundhole
Neck
Body fret Neck joins body at 14th fret
Neck joint set neck
Neck material laminated neck, mahogany neck
Neck width 1.69 inches wide at nut
Number of frets 20 fret
Tuner layout three-each-side
Hardware
Bridge pins white with black dot pins
Bridge belly bridge, morado bridge, rosewood bridge
Fretboard
Fingerboard material morado fingerboard, rosewood fingerboard
Fingerboard position markers dot fingerboard position markers

¿qué precio le pondríais?

En buenas condiciones 650€.

https://www.guitar-list.com/martin/acoustic-guitars/martin-d-1-1-series
http://www.vintageguitar.com/1846/martin-d-1-2/
http://www.harmonycentral.com/forum/forum/guitar/acapella-42/1313622-