huge compressor whats it worth?

[t-balls400ex]

http://www.imagestation.com/picture/sraid109/pb5ca9e7873f633e1f0c25a3f50eb1120/f93b51bf.jpg Just got this from work its a 3 phase 10 hp curtis compressor with a 60 gal tank it was our backup rarely used but would run whole shop have shroud and all parts just not on it in pic thinking of putting on ebay cause I dont have 3 phase wiring what should my reserve be?

[Guy400]

How old is it? Brand new 3-phase 120 gallon industrial compressors go for around $3k.

[t-balls400ex]

sorry your right it is 120 gal tank it is a 1990 model

[CUZ'n]

bout da tree fitty:)