As to the compressor it should be a Tecumseh HG500, it appears to be correct, but it should be painted black and the hoses are not in the correct location. Also note the panel where the regulator (green or yellow tape sealed) should be black with undercoat and there are asbestos heat shields (not seen) low where the headers run close to the gas tank. Plus note the rear body triangulation bars should be black not chrome.