Which kit to buy?

Alright guys, I'm not sure if you all know, but I bought a KOracing turbo kit a few weeks ago for about 2200 bucks. The thing is my friend got all excited and shit like that and went around telling everybody I was going to turbo my truck. Before I even got to thinking about when I was going to do it, a guy from town contacted me offering 2700 dollars for the whole kit. Of course I'm not gonna argue (that's a 500 dollar profit!). Now, since I'm still wanting to run some boost, I have 2700 dollars to work with. I found a cheaper turbo kit on ebay for 750 dollars, but I havent always heard the best from ebay turbos. I'm either thinking on buying the same kit and pocket 500 bucks, or risk it, save 1,950 and buy the ebay turbo...any input on this??

 

well damn fellas, i figured you guys might know a little something lol just kiddin, i think im just gonna be safe about it and get the kit again.