using craigslist.. how to make the money?

So I have an idea to make some money and I saw some people post a similar idea using craigslist to sell stuff.

my only question is how do I make the money?

I have traffic coming at me steadily trying to buy from me.

so how do I monetize?

Do I make an amazon? Ebay?

I think I want to get paid for each sale... it's not a crazy lots of traffic but constant and they want to buy certain electronics.

so what's my best avenue?

I read up on click bank but I'm not trying to make a blog or anything. I just want to direct them to buy the thing... not sure how to do it though.

Also is it possible to link them to the same product they want? Not just a similar product?

any tips?