Talking about the three core on the ebay? I bought the three core and e-fans. They do not provide the connectors and I ain't sure where to get them but you can use regular blade connectors. Plus you gotta get the fan thermostat wiring with relay either from autoparts store or summit.
The radiator supports have to modified a little bit, but it fits. The fans come with a mounting kit that comes through the radiator fins like this:
http://www.summitracing.com/parts/MRG-1994/I'm nervous about vibration causing a hole in the radiator. I bought the rad/fans combo cuz it's hard to beat that price. If I get time to fabricate a mount for the fans, I may pull the the thermostatic clutched fan off the engine and run the electric ones. Might need a higher output alternator since I'm also running an electric fuel pump.