John Deere Kohler Command 16HP lawn tractor engine, as is, runs?

John Deere Kohler Command 16 HP engine. The engine says John Deere on it, but it looks to be the same as a Kohler Command 16 HP, or 15HP. Sadly, the identification stickers have come off. Condition is salvage/as is because I was told it ran, but it has a different carburetor gasket than the original, is missing the air filter, and may have other missing parts. It has a fuel pump. Because it has different hookups than the lawn tractor has, I am unable to test it. The original engine in the tractor threw a rod, and was replaced by this engine. The guy I got it from never finished the project, and I decided it would be best to put in a different engine, and not fuss with the hookups. Sold as-is. Cash only. Not available Saturdays.