6.0l chevy truck motor - (bdman in Youngstown, OH

i have a 6.0 litre chevy truck motor that we bought for a project we were working on, but now are not going to use. it is complete with harness. i was told it had 80,000 miles on it. it is out of a 2000 chevy silverado. just want to clear money back out of it. it came with a 90 day guarantee. looking for $1000.00 obo. need to get it out of my garag