Have you done an internet search on the machine to see what they have sold for on ebay in the past or on other sites, if they have the same accessories etc? Just from looking around,t hat fall toward the low end of what I saw with a search, 2 sold for less, several were asking $1200 and up. What kind of transfer does it use - floppy or USB? If it takes a floppy - do you have that function available on your computer or will you need to purchase an external floppy drive? And are floppy's still available to purchase?
Good luck making the decision.