So.. You wanna be con-artists and get advice on how to do it? That seems illegit, just a tad. Unless you're getting a good deal on parts, or have something to bring in a lot of customers I wouldn't expect those kinds of numbers off the bat. Until you get established, it's best to sell on a build by build basis off of craigslist. You should have a knowledge of what people like and are buying. Right now it seems like laptops and cellphones are what's hot, a lotta people on the go so that's where a lot of buyers' interest seems to be heading.
Along with where you live, you'll be having a bit of competition from those markets unless you manage to get into them somehow. Another thing is that the value of computer components depreciates rather quickly as is the case with most technology; so if it doesn't sell kind of fast people are going to be looking at other more powerful and up to date parts for their rigs. It's very risky, and there are no guarantees anything will sell - especially with all the do-it-yourselfers out there. They need a reason to come to you - give them one.
