70HP Yamahas not the same as on the ad

I find an adverti*****t on gumtree (2 X 70HP YAMAHA TRIM AND TILT MOTOR - ACT VERY QUICK !! 100 HOURS !!!! - #***) I react on this adverti*****t by asking if the Engines is still available and the reply from Marine world and auto was an invoice with the amount of R79000.00.<br> I phoned the guy (Peter) and ask him where did the motors come from and why is he selling such new motors. His reply to me was that the customer upgraded to 4 strokes and he is selling it for the customer. So I was happy, I and Peter agreed that we will meet halfway Ermelo) to deliver the Engines. I then paid the R79000.00 in to his account. On Sunday morning the 20th March 2016 I meet a Guy with the name of Gary in Ermelo with the Engines on the back of his LDV all wrapped up in bubble wrap. I and my sun transferred the Engines from Gary's LDV to my sons LDV. I signed the delivery notes and we left off for Phalaborwa. On Monday morning the 21st March 2016 we offloaded the Engines and removed the bubble wrap and that is when I see that the one Engine is not the same as the one on the photos that was on the adverti*****t. After about 2hrs of struggling to get hold of Peter I finally succeed, I am not happy