Outer Limits 4x4 Board

Hey guys, i just bought my bundera project car, and it has a 22r in it that was reconditioned in late january this year. What is a fair price to sell the engine for as i won't be needing it, it has all the paperwork from the engine reconditioner. A friend of mine wants to buy it but i'm unsure as to what its worth.

one just sold in Melbourne for $650 out of the trading post with no mention of paperwork to prove reconditioning.

Generaly a wreckers will get around the $1000 for a good Second Hand 22R. I have seen 3 recently on Ebay go for less than $500 each.