GMCUSTOM,
First, turn your caps lock off
Second, building an onld I6 is about double building a V8 simply because of volume running thru shops. You can build a mild SBC for about $1500, and the old 248 will cost you about $3-4k.
If you can do the assembly your self, it may save you about $400, however then if there is a problem, it would be on your shoulders vs the builders.
However like crenwelge pointed out, if you look, there are deals on ebay and craigslist. That takes more time and patience than money,however you need to have the money in hand.
Scott