Engines USA Engine blew up from INTERNAL FAILURE within 1 month, less than 2K miles Chatsworth California

Ordered engine from Ebay on 7/15/14. Engine was listed as a ZERO MILE engine. The seller offered me a $40 discount if I gave a positive feedback rating before shipment and I refused the discount. That should have been my first warning signal. 

The engine was $1750 and professsional installation was $2100. The engine was warrantied for one year. The engine arrived with the wrong time chain and was missing the balancing shaft but they assured me that was to improve the performance. When I said I would return the engine, they assured me that there would be no issue and extended the warranty to 3 years which I have in writing. 

The engine failed in less than one month with under 1,500 miles on the engine. I had an independent mechanic assess the situation as I knew that the engine rebuilder would blame the installer and the shop that installed it would blame the rebuilder. The independent mechanic diagnosed the engine that the internal components failed and a piston came through the oil pan.

The engine rebuilder sent us another engine obviously acknowledging that their engine was defective but I am stuck with the original $2100 install bill and another $2100 install bill, a rental car for three weeks waiting for them to verify their failure. I am out over $2700 and the replacement engine that they sent us is still missing parts that we had to order from Toyota.

The use USED parts and claim to sell a ZERO MILE engine. It's a lie. I'm taking them to court.